It is far better for one to drink milk-one gets healthful nu

It is far better for one to drink milk_one gets healthful nutrients,than to drink coffee,_contains no nutrients at all.
A.what,what
B,where,as
C.from which,which
D.in which,what
请详细讲下好吗,这个我最搞不懂了

/>选C.from which,which

从含义上：

第一个空是指人们从奶中得到有益健康的营养,from which指from milk

第二个空是指咖啡没有营养,which指coffee

如果是选A.what,what,我们可以改一下句子：

It is far better for one to drink _ have healthful nutrients,than to drink _contain no nutrients at all.

如果选B,where,as,我们可改一下句子：

It is far better for one to drink milk_one gets healthful nutrients,than to drink coffee,_ it contains no nutrients at all.

as在这里表原因,但一般as是用于句首.

如果选D.in which,what,我们可改一下句子：

It is far better for one to drink milk_one gets healthful nutrients,than to drink _contains no nutrients at all.

但是in which的介词是否地道就是另一回事了.