10.Ma Yun is now a boss of a famous company, for______life was once very hard.

10.Ma Yun is now a boss of a famous company, for______life was once very hard.

10.Ma Yun is now a boss of a famous company, for______life was once
very hard.
A. whose B. which C. whom
答案选A，可是for在这里起引导从句作用呢？先行词是Ma Yun。

for引导从句，表示补充

C. whom

先行词是Ma Yun

对于他来说，生活曾经很艰难。追问这是13年柳州的中考题，网上给的答案都是A啊呜呜呜.我就觉得选C，如果没有for的话选A我还懂。