________she first heard of the man referred to as a specialist.如何做这道题,请详解

问题描述:

________she first heard of the man referred to as a specialist.如何做这道题,请详解
________she first heard of the man referred to as a specialist.
A.That was from Stephen C.It was from Stephen that
B.It was Stephen whom D.It was Stephen that

c,其他或者语法错误(a,b)或者意思不通(d)