阅读下面的短文，根据短文内容，从短文后的选项中选出能填入文中空白处的最佳选项。（每个选项只用一次，选项中有一项为多余选项）

There are many kinds of food in the world. 【小题1】 They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn’t eat too much meat. 【小题2】 Of course our bodies need some water and milk.

Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. 【小题3】 In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. 【小题4】

Nowadays, the world faces two problems. People in some places, for example, in Africa（非洲）, are not full. 【小题5】 It’s bad for people’s health. So it’s our duty to make everyone full and make everyone healthy.

A．People also need to eat some fruits, bread and rice.

B．Scientists learn a lot about them.

C．What we eat is the most important thing.

D．Different people like eating different food.

E．Many people like eating junk food.

F．Different people eat at different times.