Since the Effect of Comparing One's Achievements with Those of Others

Since the effect of comparing one's achievements with those of others is an important influence in self-efficacy, a teacher should

A) involve students in competitive activities so that they learn how to win.
B) involve students in cooperative learning activities.
C) involve students in math games (drills and relays) so that they have fun and see other students model winning.
D) involve students in independent work so they feel a personal sense of accomplishment and not like they cheated.