In Research Presented in the Text, Participants Were Exposed to a Lecture

In research presented in the text, participants were exposed to a lecture on social-psychological factors which inhibit helping. Later, these participants were put into a potential helping situation. The results suggest that

A) participants who learned about factors which inhibit helping were more likely to help.
B) participants who learned about factors which inhibit helping were less likely to help.
C) learning about factors which inhibit helping has no effect on helping behavior.
D) learning about factors which inhibit helping can increase helping behavior, depending on the participant's personality.