I have always been honest and straight forward, and it doesn’t matter ____that I’m talking to

A.who is it

B.who it is

C.it is who

D.it is whom

答案及解析： B

解析：

考查强调句型。这是一个强调结构的特殊疑问句，把D改为whom it is 也对。句意：不管跟谁讲话（交流），我一直很诚实直率。