I'm the only one who likes pop music in our class________?

I'm the only one who likes pop music in our class________?
A aren't you B aren't I C am not I D am I
选B为什么？I'm the only one who likes pop music in our class，aren't I ?当主句的主语是【I】，后面的反义疑问句【肯定不会反问“我 I “，让我自己回答没意义】，只能反问“听话的对方aren't I ”.，你说是吗？