Eli enjoys woodcarving. although none of his teenage friends are interested, he often spends hours creating several different pieces. his enjoyment of the task is all his own, and he rarely shows others his work. many would call his motivation in nature.

a) instinctual
b) arousal
c) extrinsic
d) intrinsic

intrinsic    

Explanation:

Intrinsic motivation: It is defined as the behavior which is driven by internal forces or rewards. It includes the behavior being motivated internally to do something that is naturally satisfactory for an individual.

Examples: Participating in any sport of a person's choice because it's fun playing and the person enjoys it rather than playing it to win an award.

Factors of intrinsic motivation:

1. Challenge

2. Curiosity

3. Control

4. Fantasy

5. Competition

6. Cooperation

7. Recognition.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

answer; education;