Sade is somewhat dissatisfied with her friendship with Jocelyn,in part because Jocelyn has been depressed a lot lately and isn't as much fun to be around anymore.Sade maintains this friendship with in spite of these reservations,mostly because they have a long history of helping one another in times of need.According to social exchange theory,which best explains why Sade continues this friendship?

A) immediate rewards
B) forecasted rewards
C) cumulative rewards
D) expected rewards

Cumulative rewards refer to the benefits gained over time from maintaining a relationship, such as shared experiences and mutual support. Sade's continued friendship with Jocelyn is due to their long history of helping one another, which has likely resulted in a cumulative reward of shared experiences and mutual support. While immediate, forecasted, and expected rewards may play a role in Sade's decision to continue the friendship, cumulative rewards are likely the most significant factor according to social exchange theory.