I think it is C because A is missing commas, B doesn't need them and D doesn't need one.
Answer:
"Extrinsic motivation refers to behavior that is driven by external factors such as a reward or avoidance of negative outcomes. Money is the most obvious example of an extrinsic motivation"
Explanation:
Answer:He made it abundantly clear that anybody who disagrees with his policies will not last long
Explanation:
Answer:
an inkblot
good
he does not understand this test
Explanation:
got it right on edgenuity.