Q:Read the following conversation and answer the question. M: Do you like our new history teacher? W: I'm tired of his endless talking. He never gives us a little time to discuss things. M: You can't say that! He's a very knowledgeable person. W: But I can't see it. Question: What teacher are they talking about? - Their Chinese teacher. - Their history teacher. - Their politics teacher.
A:
Their history teacher.