The definition of a fast food restaurant includes several things. First, you can buy only certain foods. Second, there are no waiters or waitresses. You order your food at a counter or a window, pay for it, and receive it right there. And third, the restaurant serves many people quickly. Hundreds of people can go through a fast food restaurant during a day.

(63 words)

　　Which of the following is the main idea of the passage?
　　 A) A fast food restaurant can only serve you certain foods.　　　　
　　 B) Characteristics of a fast food restaurant.
　　 C) Disadvantages of fast food.
　　 D) Many people like to eat at fast food restaurants.

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