@parkfell: There is no problem with understanding what to do as you see. The problem is the CAAs expecting different answer to the same kind of questions plus EASA giving the wrong answer as good and the good as wrong. So now how are we supposed to know they corrected the question so the correct answer is correct? No one wish to contest a question if the exam is passed.... so its like 2,86 % lost in total percentage if someone draws the bad question and chooses the correct answer but the CAA failed to make the correct answer correct and the incorrect is marked as correct.
But no one will mark the incorrect option because in case they changed it then there would be no option to contest..... (in case someone lacked one question to pass the exam, because as said almost no one protest after a pass even if they lose 2,86 % because of a CAA failure).