His wife enjoined him to change his ways.

Answer: Option C

Asked : say something in order to obtain an answer or some information.
Pleaded : make an emotional appeal.
Urged : try earnestly or persistently to persuade (someone) to do something.
Threatened : state one's intention to take hostile action against (someone) in retribution for something done or not done.
Enjoined : instruct or urge (someone) to do something.

Synonym of Enjoined is Urged