As reported on Wiki page of quiz extension using piped links inside tabular response questions results in syntax error.
To reproduce the bug use the following quiz:
{Question |type="[]"} | Option A | [[Article name|Option B]] | Option C ++- Question 1 (Clue: A and B are correct). -++ Question 2 ( Clue: B and C are correct). --+ Question 3 (Clue: C is correct).
Interwiki links are abbreviations for commonly-used longer external links.External links work fine inside tabular response as they don't use " | " markup.