Answer:
Marcus is motivated by intrinsic motivation, while Wade is motivated by extrinsic motivation.
Step-by-step explanation:
Simply put, intrinsic motivation is the motivation that comes from within. It does not need any external factors to exist. You are motivated by your own feelings, and you do something because you really enjoy it.
On the other hand, extrinsic motivation comes from factors outside the self. If money and fame motivate you, for instance, that means you are extrinsically motivated.
According to the passage, Marcus is taking advanced placement chemistry because he truly enjoys it. Marcus' motivation is intrinsic. However, Wade is taking the same subject because he was told it will be helpful in the future. Wade's motivation is extrinsic.