Lucy,for ___life was hard,began acting at age of five.a who b whom c whose为什么不选C要选B

Lucy,for ___life was hard,began acting at age of five.a who b whom c whose为什么不选C要选B
Lucy,for ___life was hard,began acting at age of five.
a who
b whom
c whose
为什么不选C要选B

Lucy,for ___life was hard,began acting at age of five.a who b whom c whose为什么不选C要选B
因为前面有介词for 所以必须用宾格形式

只有WHOM和WHICH前能加介词

因为lucy在句子中充当主语，而whom只可以先行词充当宾语时才可以用，而whose只用于与先行词是所属关系是，但lucy与life不是所属关系

介词后要用宾格啊