[单项选择]

As America is home to so many different nationalities, one can find almost any kind of restaurant in all the large cities. The restaurants can range widely in cost from inexpensive to very expensive.
But fast food shops have become very widespread in the U. S. because they are quick and cheap. And cafeterias are especially popular with American students. There you can get a variety of food such as fried fish, barbecued chicken, spaghetti, salad, vegetables, macaroni, sweet potatoes, rice, hot rolls. There are also desserts and drinks. You can pick up whatever strikes your fancy.
Tips are generally not required at cafeterias where you serve yourself and you are expected to clear your own table of dishes and utensils, and discard your trash in the garbage cans. In most cafeterias, you stand in line. As you walk along, you select items available at a counter. At normal mealtimes, cafeterias are crowded with people. You can usually get a seat without waiting t
A. You have to clean your own table at a cafeteria.
B. Students like cafeterias because they are quite cheap.
C. You may eat Chinese food at a cafeteria.
D. You can eat comfortably at a cafeteria whenever you want to.