Amos Has Just Received a Good Grade on His Calculus

Amos has just received a good grade on his calculus exam.He's in a great mood and thinks to himself,"School's going well,my relationship with Carrie is going great.It's a wonderful world!" On the way out of the building,he finds that a bicyclist has hit a pedestrian,so he hurries over to help the fallen person.This example best illustrates which of the three reasons why positive mood enhances helping?

A) We are motivated to prolong our good moods and helping does that.
B) We are motivated to put others in a good mood when we are in a good mood.
C) Good mood decrease self-attention, increasing the odds that we will notice another's distress.
D) Good moods enhance self-esteem, which leads to helping.
E) Good moods make us look on the brighter side of life, so we are more generous in our attributions.