阅读下列短文, 从下面每小题的A、B、C、D四个选项中选出最佳选项。There is a famous English saying, "You are what you eat", which means that what you put in your mouth becomes part of you. Many experts (专家) use this saying to emphasize the importance of having a good eating habit. For example, too much sweet food can make a person overweight. To stay fit, kids are often told to avoid sweet food. However, a recent survey completed by a team of American scientists has discovered something new about eating sweet food.
"When we say someone is'sweet', we mean they are kind and friendly to us. Perhaps this word can help us understand more about people's feelings and behaviours," said Brian Meier, a scientist from the study team. "Taste is something we experience every day. What we have done is to explore whether we can know someone's character and behaviour based on their taste preferences."
In one of their experiments, college students were asked questions about their character— whether, for example, they were soft-hearted or not. Then they were asked to list their favourite foods. According to their answers, the scientists found that students who liked sweet food were generally nicer.
In another experiment, the scientists found that people who preferred sweet foods, such as cookies and chocolate, were more willing to help others in need, while those who preferred non-sweet foods, such as chips, were less likely to do so. For example, people with a sweet tooth were more likely to volunteer to clean up their city, visit sick children in the hospital, and so on.
The results of the experiments suggest that people's helpfulness or kindness may be related to their preference for sweet food. So eating sweet food might be a useful way to make people more kind and helpful. Next time, try some ice cream!