7882. The incident affected him so much that he could not forget it for several days.

✅ The correct answer is option C.
Upset : make (someone) unhappy, disappointed, or worried.

Changed : make or become different.

Influenced : have an influence on.

Controlled : not showing emotion; having one’s feelings under control.

Affected : influenced or touched by an external factor.

Synonym of Affected is Influenced