答案：B

　　B

　　The United Nations Food and Agriculture Organization says more than a billion tons of food is wasted each year. Much of that waste happens in wealthy nations, but it happens in developing countries, too.Though a lot of food is being wasted, hundreds of millions of people go to sleep hungry each day.

　　Danielle Nierenberg is the cofounder and president of Food Tank, an organization that studies food problems. Ms.Nierenberg says much of the food waste in the developing world is caused by poor infrastructure(基础设施), like bad roads. It is also because areas for storing food are too small.

　　In wealthy nations, food is wasted because people buy more than they can eat. Ms. Nierenberg also thinks dates that are printed on food containers have something to do with it. These dates tell buyers and sellers by what date the food should be sold or

　　eaten. She says these dates cause people to throw away food too soon.

　　Our journalist interviewed Ms. Nierenberg when she was in Milan, Italy. She was attending a yearly meeting. Officials at the meeting showed what they call the “Milan Protocol”. The document calls on international leaders and policymakers to improve food security.“It focuses not only on food waste，but also on creating better agriculture systems, as well as on unhealthy eating，” she said.

　　Ms. Nierenberg says the amount of food wasted each year shows that there is already enough food to feed the planet.“The problem of hunger in the world is not lack of food. We produce more than enough food for every man, woman and child to eat every day. It's poverty that prevents food from getting to people who need it most，” she said at the end of the interview.

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