I think this used to be default in the old version. But I like revealing the answer and also revealing which student got it correct, from the app, instead of having to show student responses from the browser, which is cumbersome, and I always forget to hide them before the next question. By default I want their answers hidden as they answer, and revealed when the answer is revealed. It would be nice to also have the choice to reveal student answers (A B C D) or just have their name change Green or Red. It depends on the class, some students like the competition, others less so. But in general, they like the satisfaction of seeing that they did or did not get the question right.