悬韧带放松可使（）

A.瞳孔缩小

B.晶状体曲率增加

C.晶状体曲率减少

D.角膜曲度增加

E.角膜曲度减少

We are not conscious of the extent of which work provides the psychological satisfaction that can make the difference between a full and empty life.

A．to which

B．in which

C．at which

D．by which