Researchers Conducted an Experiment with the Goal of Comparing Students

Researchers conducted an experiment with the goal of comparing students' predictions about their emotional responses to their actual responses.They asked the students to predict how they imagined they would feel if their grade on an assignment were higher or lower than their prediction,or pretty much accurate.They later asked them how the actual outcomes made them feel.What did the researchers discover?

A) students experienced much more rejoicing over a higher than expected grade than they thought they would.
B) students' predictions about their future emotions were pretty much accurate.
C) students on average did somewhat worse on their assignments than they had predicted.
D) students did somewhat better than they had expected but they experienced much less rejoicing about these better-than-expected results than they had predicted.