Q:Dialogue: 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 book on planes. - Pictures of ships. - A book on ships.
A:
A book on planes.