23. Jane: What are you doing, Paul? Paul: I’m packing for my camping trip. Jane: Why are you taking a raincoat? Didn’t the weather forecast say it’s going to be sunny? Paul: Yes, but _______________ In case it rains, I won’t get wet. (A) a pair of sunglasses will come in handy. (B) the sun can be very strong during the trip. (C) you had better listen to the weather forecast. (D) the weather changes quickly in the mountains.