W: John, I'm supposed to go on a picnic tomorrow with Mary, but now Karen has asked me to go to a movie with her. I need your advice. What should I do? M: If I were you, Susan, I'd go on the picnic. W: Well, I really want to see this movie. M: You can always see the movie some other time. In any case, you agreed to go with Mary first. W: You're right, John. I'll ask Karen to find another time for the movie. Now maybe you can help me decide what food to fix for the picnic. Would it be better to cook food at home and take it with us, or could we cook something there? M: There may not be a place to cook. Besides, it's always easier to fix things in your own kitchen., Question: What advice does John give Susan about the picnic? (A) She can cook the food in a wild place. (B) It is better for her to prepare the food at home. (C) She and Mary can buy some food on their way.
(B) It is better for her to prepare the food at home.