Some people who don’t like to talk much are not necessarily shy；they ______ just be quiet people.

A．must

B．may

C．should

D．would

2004年实行的规定中《商业银行资本充足管理办法》计入附属资本的长期次级债务不超过核心资本的（）。

A.30%

B.50%

C.20%

D.10%