Given the task definition and input, reply with output. In this task, you will be shown a conversation and a question. You need to answer the question and choose the correct option based on the conversation. "W" and "M" in the conversations stand for "woman" and "man".

M: Are you buying that book on ships? I didn't know you were interested in ships. W: I'm not. I've just been looking at the pictures. No, this is the one I'm buying-on modern aircraft. M: I thought you hated flying. W: I do, but I love watching planes., Question: What is the woman going to buy? (A) A book on planes. (B) Pictures of ships. (C) A book on ships.
(A) A book on planes.