The President of a Fraternity Wants to Increase the Number

The president of a fraternity wants to increase the number of fraternity members who volunteer for nonprofit organizations in the community.Kurt Lewin's concept of channel factors suggests the president should

A) induce guilt among members who are not currently volunteering.
B) provide information about when and how members might volunteer.
C) offer a prize to the member who volunteers the most hours.
D) ask members to publicly commit to a particular volunteering opportunity.