Thomas, please be quiet. The others _____ hear very well. [ ]

A. can't

B. mustn't

C. shouldn't

D. needn't

发挥自己的潜能，实现自已的理想与抱负的需要是（）

A.生理需要

B.安全需要

C.爱与被爱的需要

D.尊重的需要

E.自我实现的需要