Noticed this in the logs for wmf.7
```
#0 /srv/mediawiki/php-1.32.0-wmf.7/extensions/Quiz/Question.php(380): MWExceptionHandler::handleError(integer, string, string, integer, array, array)
#1 /srv/mediawiki/php-1.32.0-wmf.7/extensions/Quiz/Question.php(186): Question->basicTypeParseObject(string, string)
#2 /srv/mediawiki/php-1.32.0-wmf.7/extensions/Quiz/Quiz.class.php(324): Question->multipleChoiceParseObject(string)
#3 /srv/mediawiki/php-1.32.0-wmf.7/extensions/Quiz/Quiz.class.php(246): Quiz->parseQuestion(array, boolean)
#4 /srv/mediawiki/php-1.32.0-wmf.7/extensions/Quiz/Quiz.class.php(151): Quiz->parseQuestions(string)
#5 /srv/mediawiki/php-1.32.0-wmf.7/extensions/Quiz/Quiz.hooks.php(28): Quiz->parseQuiz(string)
#6 /srv/mediawiki/php-1.32.0-wmf.7/includes/parser/Parser.php(3902): QuizHooks::renderQuiz(string, array, Parser, PPFrame_Hash)
#7 /srv/mediawiki/php-1.32.0-wmf.7/includes/parser/Preprocessor_Hash.php(1188): Parser->extensionSubstitution(array, PPFrame_Hash)
#8 /srv/mediawiki/php-1.32.0-wmf.7/includes/parser/Parser.php(2957): PPFrame_Hash->expand(PPNode_Hash_Tree, integer)
#9 /srv/mediawiki/php-1.32.0-wmf.7/includes/parser/Parser.php(1296): Parser->replaceVariables(string)
#10 /srv/mediawiki/php-1.32.0-wmf.7/includes/parser/Parser.php(446): Parser->internalParse(string)
#11 /srv/mediawiki/php-1.32.0-wmf.7/includes/content/WikitextContent.php(323): Parser->parse(string, Title, ParserOptions, boolean, boolean, integer)
#12 /srv/mediawiki/php-1.32.0-wmf.7/includes/content/AbstractContent.php(516): WikitextContent->fillParserOutput(Title, integer, ParserOptions, boolean, ParserOutput)
#13 /srv/mediawiki/php-1.32.0-wmf.7/includes/poolcounter/PoolWorkArticleView.php(145): AbstractContent->getParserOutput(Title, integer, ParserOptions)
#14 /srv/mediawiki/php-1.32.0-wmf.7/includes/poolcounter/PoolCounterWork.php(123): PoolWorkArticleView->doWork()
#15 /srv/mediawiki/php-1.32.0-wmf.7/includes/poolcounter/PoolCounterWork.php(133): PoolCounterWork->execute(boolean)
#16 /srv/mediawiki/php-1.32.0-wmf.7/includes/page/Article.php(604): PoolCounterWork->execute()
#17 /srv/mediawiki/php-1.32.0-wmf.7/includes/actions/ViewAction.php(68): Article->view()
#18 /srv/mediawiki/php-1.32.0-wmf.7/includes/MediaWiki.php(500): ViewAction->show()
#19 /srv/mediawiki/php-1.32.0-wmf.7/includes/MediaWiki.php(294): MediaWiki->performAction(Article, Title)
#20 /srv/mediawiki/php-1.32.0-wmf.7/includes/MediaWiki.php(864): MediaWiki->performRequest()
#21 /srv/mediawiki/php-1.32.0-wmf.7/includes/MediaWiki.php(524): MediaWiki->main()
#22 /srv/mediawiki/php-1.32.0-wmf.7/index.php(42): MediaWiki->run()
#23 /srv/mediawiki/w/index.php(3): include(string)
#24 {main}Seen on <https://logstash.wikimedia.org/app/kibana#/dashboard/mediawiki-errors> for "Quiz", since at least the 1.32.0-wmf.7 branch. About 50 records currently in Logstash (July 2018).
```
exception.message PHP Notice: Undefined index: 3
exception.file /srv/mediawiki/php-1.32.0-wmf.14/extensions/Quiz/Question.php:380
exception.trace
#0 /srv/mediawiki/php-1.32.0-wmf.14/extensions/Quiz/Question.php(380): MWExceptionHandler::handleError(integer, string, string, integer, array, array)
#1 /srv/mediawiki/php-1.32.0-wmf.14/extensions/Quiz/Question.php(186): Question->basicTypeParseObject(string, string)
#2 /srv/mediawiki/php-1.32.0-wmf.14/extensions/Quiz/Quiz.class.php(324): Question->multipleChoiceParseObject(string)
#3 /srv/mediawiki/php-1.32.0-wmf.14/extensions/Quiz/Quiz.class.php(246): Quiz->parseQuestion(array, boolean)
#4 /srv/mediawiki/php-1.32.0-wmf.14/extensions/Quiz/Quiz.class.php(151): Quiz->parseQuestions(string)
#5 /srv/mediawiki/php-1.32.0-wmf.14/extensions/Quiz/Quiz.hooks.php(28): Quiz->parseQuiz(string)
#6 /srv/mediawiki/php-1.32.0-wmf.14/includes/parser/Parser.php(3898): QuizHooks::renderQuiz(string, array, Parser, PPFrame_Hash)
#7 /srv/mediawiki/php-1.32.0-wmf.14/includes/parser/Preprocessor_Hash.php(1188): Parser->extensionSubstitution(array, PPFrame_Hash)
#8 /srv/mediawiki/php-1.32.0-wmf.14/includes/parser/Parser.php(2953): PPFrame_Hash->expand(PPNode_Hash_Tree, integer)
#9 /srv/mediawiki/php-1.32.0-wmf.14/includes/parser/Parser.php(1297): Parser->replaceVariables(string)
#10 /srv/mediawiki/php-1.32.0-wmf.14/includes/parser/Parser.php(446): Parser->internalParse(string)
#11 /srv/mediawiki/php-1.32.0-wmf.14/includes/content/WikitextContent.php(323): Parser->parse(string, Title, ParserOptions, boolean, boolean, integer)
#12 /srv/mediawiki/php-1.32.0-wmf.14/includes/content/AbstractContent.php(516): WikitextContent->fillParserOutput(Title, integer, ParserOptions, boolean, ParserOutput)
#13 /srv/mediawiki/php-1.32.0-wmf.14/includes/poolcounter/PoolWorkArticleView.php(145): AbstractContent->getParserOutput(Title, integer, ParserOptions)
#14 /srv/mediawiki/php-1.32.0-wmf.14/includes/poolcounter/PoolCounterWork.php(123): PoolWorkArticleView->doWork()
#15 /srv/mediawiki/php-1.32.0-wmf.14/includes/page/Article.php(604): PoolCounterWork->execute()
#16 /srv/mediawiki/php-1.32.0-wmf.14/includes/actions/ViewAction.php(68): Article->view()
#17 /srv/mediawiki/php-1.32.0-wmf.14/includes/MediaWiki.php(500): ViewAction->show()
#18 /srv/mediawiki/php-1.32.0-wmf.14/includes/MediaWiki.php(294): MediaWiki->performAction(Article, Title)
#19 /srv/mediawiki/php-1.32.0-wmf.14/includes/MediaWiki.php(867): MediaWiki->performRequest()
#20 /srv/mediawiki/php-1.32.0-wmf.14/includes/MediaWiki.php(524): MediaWiki->main()
#21 /srv/mediawiki/php-1.32.0-wmf.14/index.php(42): MediaWiki->run()
#22 /srv/mediawiki/w/index.php(3): include(string)
#23 {main}
```