请看下面的选择题The woman can't decide -------.A.to choose which one

请看下面的选择题
The woman can't decide _______.
A.to choose which one B.which one to choose from
C.to choose which D.which to choose one
我感觉BC都对。请选择B或C的朋友 解释一下为什么另一个不行。