Concept:Intrinsic motivation comes from within. A student does an activity for the joy and challenge itself, not for external rewards.Explanation:An intrinsically motivated student finds the activity rewarding by itself. The satisfaction, interest, or sense of accomplishment keeps him/her engaged. External rewards like grades or prizes are not needed. The motivation is continuous because the activity and goal are directly linked. In contrast, extrinsically motivated students need outside rewards or punishments. For an intrinsically motivated student, rewards are not at all required to sustain the behavior. Answer:A. rewards are not at all required