选D
这句话其实是Do you know the man （who was) called Mike?你知道那个叫做mike的人吗?
这是一个定语从句,关系代词who,whom,which和that在定语从句中用作动词宾语或介词位于句末时的介词宾语时,可以省略.如：Is there anything (which) you wanted?想要什么东西吗?Who is the man (that / who / whom) you were talking to?刚才和你讲话的人是谁?
另外,be called的意思是“叫做”,等同于be named.