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

Question

of the words whom,which,or that,which,pronoun is used to refer only to things (A. whom) (B which) (C that) (D.none of these)

Answer 1

Both "which" and "that" can be used to refer to things, as in "The table which stands in the middle of the room" or "The table that broke yesterday". "Whom" can refer only to a person or person, as in "The Germans, of whom it has been said..." or "The individual of whom you speak..."
The answer is A. and B.