【单选题】

Man: I notice you don't buy your lunch in the cafeteria any more.
Woman: When prices went up,I decided to bring my own.
Question: Why doesn't the woman buy food in the cafeteria

A．She is on a special diet.

B．She doesn't like to walk to the cafeteria.
C．She thinks the cafeteria is too expensive.
D．She doesn't eat lunch anymor