第三磨牙是哪种情况时最容易导致错畸形复发（）

A.完全萌出

B.垂直阻生

C.颊侧阻生

D.水平及前倾阻生

E.倒置阻生

I see four kinds of pressure working on college students today: economic pressure, parental pressure, peer pressure, but self-induced pressure.

A．and

B．or

C．nil

D．with