--- Since you can't find a better way out for the time being, why not follow his advice?

--- oh, you are right. ______.

A．I believe so

B．I might as well

C．It doesn't matter

D．I don't care

糖尿病易引起（）

A.代谢性白内障

B.并发性白内障

C.先天性白内障

D.老年性白内障