根据短文内容，从下框A~F选项中选出能概括每段主题的最佳选项，并在答题卡上将该选项涂黑。选项中有一项为多余项。
A、The Long History of Marriage.
B、 Three Historical Stages of Marriage.
C、 Small Pay for a Happy Marriage.
D、Requirements for Marriage.
E、 Wedding and Marriage Ceremonies.
F、 Reasons for Marriage.
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Married people know they must adjust to one another to make their marriage successful, and that adjustments require thoughtfulness, co-operation, and sacrifices of some personal desires. Through the ages, however, people in all lands have found that these adjustments are very little to pay for the lifetime rewards of a happy marriage.
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Some countries, such as England and Switzerland, require that banns(结婚预告), or public notices of a proposed marriage, be announced. In most civilized countries couples must get a license to marry. Most states require a blood test or a general check-up before granting a license.
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Wedding and marriage are not the same. The wedding is the ceremony that marks the beginning of a marriage. The basic element of marriage is the “consensus(意见一致) in the marriage ceremony---that is, the mutual agreement of the two people to be married.
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The history of marriage may be as old as that of the man and family. In ancient times the man’s family often provided presents for all the relatives of the girl. If the gifts were favorably received, the man would be given the woman he wanted.
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Marriage has developed through three stages. At first it was simply mating. The second stage gradually developed the legal process and moral obligations, and the rights of each mate began to be defined. The third stage stresses ethical(道德的) rights.