—It's not easy _________Mrs White to persuade（劝说）her husband to stop smoking. He never listens to others. —Really? It's stubborn ____________ him.

题型：单选题题类：常考题难易度：普通

—It's not easy _________Mrs White to persuade（劝说）her husband to stop smoking. He never listens to others.
—Really? It's stubborn ____________ him.

A、of; of B、for; of C、for; for D、of; for