答案应该是C
A Whom是宾语时才会使用,这里是主语
B 如果是the person who才对
D 如果是no matter who才对D 我打错了！是no matter who.....为什么D错了？应该是I will offer the books to him, no matter who wants them.但答案是whoever呀？C啊。。。是呀D不对呀，因为no matter who必须要用在分句里面。明白！！！！Thanks!!!!!