—What do you want to do next? We have half an hour until the basketball game. 

—      . Whatever you want to do is fine with me.

A. It just depends

B. It's up to you

C. All right

D. Glad to hear that

男性，42岁，左下腹痛1个月，便血，里急后重，下列哪项检查：较简便，有诊断意义

A．便培养+药敏
B．血CEA
C．直肠指诊
D．钡灌肠
E．腹部CT