Question #11 is a legitimate “Tricky” question. Only 17% answered correctly, but both A and C attracted more students.
#11 was “noticed” because 44% > [17% + 25% (criterion)]
Question #47 should be checked carefully. Only a few selected the correct answer, but 74% selected option A. It could be a wording problem.
If the official answer is wrong, Admin will edit the “official” answer, then rescore the answers of the 414 students with a single mouse-click.