题目内容

Being unhappy is like an infectious disease. It causes people to shrink away from the sufferer. He soon finds himself alone and miserable. There is, however, a cure so simple as to seem, at first glance, ridiculous: if you don’t feel happy, pretend to be! It works. Before long you will find that instead of pushing people away, you attract them. You discover how deeply rewarding it is to be the center of wider and wider circles of good will.Then the make-believe becomes a reality. Being happy, once it is realized as a duty and established as a habit, opens doors into unimaginable gardens filled with grateful friends.

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D. Because you can save some money.

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