Muriel,who Is Generally a Happy Person,becomes Quite Sad to Find

Muriel,who is generally a happy person,becomes quite sad to find out that she failed her psychology exam,but recognizes that her failure to study probably played a role.When her roommate asks Muriel for a ride to the airport, Muriel will probably

A) be more likely to help.
B) be less likely to help.
C) focus more on the costs of helping rather than the rewards.
D) be more concerned with the potential for reciprocity.