—Excuse me, could you tell me________?

A．where can I have my MP4 repaired

B．how many students had passed the test

C．how can I go to the e-shop

D．what is wrong with your bike

女，36岁，反复右腰痛伴镜下血尿2年。KUB及IVP示右肾多发结石，左输尿管上段结石，直径1.2cm，双肾积水，双肾功能良好。首先考虑做哪种治疗（）

A.左输尿管体外碎石术

B.右肾盂切开取石术

C.右肾实质切开取石术

D.右肾造瘘术

E.左输尿管切开取石术