Some motivational researchers make an important distinction between motivation, which involves performing an activity to obtain an external reward or prize, and motivation, which involves engaging in an activity for its own sake because it is enjoyable or engaging.

The answer is extrinsic and intrinsic, respectively.

Explanation:

Extrinsic motivation comes from an external factor, such as money, a promotion or a good grade. On the other hand, intrinsic motivation reflects an attitude of enjoyment or self-improvement.

Some studies have shown that both types of motivation can be effective. However, too much extrinsic motivation can decrease already intrinsic motivation. In other words, offering a reward could give people the impression that a task is dull.

i think the answer is true : ))

d.) continue to rise rapidly