Edison was one of the greatest inventors ___never gave up .

问题描述:

Edison was one of the greatest inventors ___never gave up .
A.that B.who C.which D.whom
The answer is A .I dont know why it is .Can you tall me thank you
我知道答案是在that和who 之间选择,我就想知道为什么选择that,

前面有the greatest*形式,而与*常连用的是that.
如果前面没有*形式the greatest,那么who也是可以选择的.
如:
Edison was an inventor who/that never gave up .