definitions write the letter of the correct answer to each question?

Question

Which pronouns are used to refer to antecedents of common gender A. him,and,her B. he,him,his C. it,its D.none of these

Answer 1

I think the answer is B, that's the most obvious answer but shouldn't they all be correct?
Oh hold up, i think the keyword in your question is common gender so in that case it really could be B (I'm confused about C tho), someone else can clarify.

Answer 2

d

Answer 3

B. he, him, his

all are male