Which of the Following Is the Best Example of a Supererogatory

Multiple Choice

Which of the following is the best example of a supererogatory act?

A) Because she loves him so much, Jane suggests that her boyfriend Harry, who is unprepared for an exam, cheat by copying from her answer paper, even though she realizes that she may be kicked out of college if they are caught.
B) Harry refrains from cheating because he knows cheating is wrong.
C) Jane volunteers in a homeless shelter as part of a requirement for her ethics course.
D) Harry spent the previous week, at his own expense, helping to rescue flood victims in Alabama.