Section CDirections: In this section, you will hear three passages. At the end of each passage, you will hear three or four questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.[音频]Question 16
A. Rewarding them for eating vegetables.
B. Exposing them to vegetables repeatedly.
C. Improving the taste of vegetable dishes for them.
D. Explaining the benefits of eating vegetables to them.