^—Would you like to come to dinner this Sunday, Mr. Wang?         

^— _____[ ]

A. I'd love to, but I have lots of things to do.

B. Oh no. That'll be too tired.

C. I'll stay at home.

D. Yes, please.

男性，67岁。夜间尿频半年余，排尿困难2个月。B超检查：双肾未见占位性病变，膀胱充盈良好，前列腺4.5cm×4cm×3cm大小，残余尿量120ml。如果最大尿流率<10ml／s，膀胱顺应性尚好，治疗方法最好采取（）

A.药物治疗

B.开放手术

C.经 * * 电切术

D.留置导尿管

E.留置导尿管+药物治疗