阅读下面短文，从每题所给的A、B、C、D四个选项中选出能正确回答所提问题或完成所给句子的最佳答案。
It seems that school children all over the world complain (抱怨) about their school food. What do students of your age eat for lunch at school in other countries?
Japan
High schools have dining rooms. They serve everything from noodles to rice, but not burgers or chips. Other children bring food from home, such as cold rice balls, meat or fish, pickles(泡菜)and vegetables. Twice a year parents are invited to have a taste of the food.
The United States
A typical menu from an American school is made up of a hamburger with fried potatoes or roast chicken, lettuce and pickles, fruit and cookies. School lunches must also provide at least one third of the daily amount(总量)of necessary nutrition(营养), such as vitamin A, vitamin C and calcium (钙).
Australia
Meat pies , sausage rolls (香肠卷) and hot dogs are all traditional dishes in Australian school shops. But as the country pays more attention to children's health, healthier foods have started to appear on school menus. Many schools have used a traffic light system. The sale of red labeled (标注)foods, including cookies, chocolate and soft drinks, is served only twice a week. Healthier green labeled foods such as sushi, sandwiches, corn and watermelons, however, are available every day.
South Africa
Most of South African schools do not serve meals at all. Classes end at 1:30 p. m. and students get their own lunches. Many students bring food from home, usually sandwiches.
Fast food and fried food sell the best among students. As a result, it has caused a rise in obesity (肥胖)among children. But as more people begin to realize that being too fat may cause different kinds of serious illnesses, some schools in towns have led the way towards better nutrition. Now students at these schools are offered lunches of porridge with vegetables, such as cabbage, onions, beans, carrots and tomatoes.