Performance-Contingent Rewards Depend on How Well People Perform the Task

Performance-contingent rewards depend on how well people perform the task.This type of reward

A) is more likely to decrease interest in a task than task-contingent rewards.
B) is less likely to decrease interest in a task than task-contingent rewards.
C) is subject to the over-justification effect.
D) leads to self-enhancement.
E) is an important part of social comparison theory.