—Must I hand in my report now?

—No, you ______. You still have some time. [ ]

A. shouldn't

B. mustn't

C. needn't

D. can't

关于胆囊息肉样病变和胆囊腺瘤的描述，不正确的是（）。

A.腺瘤一般单发，体积较胆固醇息肉大

B.它包括胆固醇性息肉、腺瘤性息肉和炎性息肉

C.胆囊腺瘤呈 * * 状结节，基底较窄

D.胆固醇样息肉体积较小，常不超过1cm

E.炎性息肉常多发