下面短文中有10处语言错误，请在错误的地方增加、删除或修改某个单词。注意格式。

     Would you like spend your holiday traveling by balloon (气球)? Now thousands of people are interesting in

the game. The first balloon trip took place in France at 1783. About a year later, an American decided to across

the channel between French and England by balloon. Over the channel, he discovered a hole on the balloon and

it became bigger and bigger. The gas kept the balloon up was being running out. He threw all his belongings into

water to make the balloon heavier. It worked. The balloon rose again. At last he manages to land on the other

shore.

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按照CAPM模型，假定：市场预期收益率=15%，无风险利率=8%，XYZ证券的预期收益率=17%，XYZ的贝塔值=1.25，以下哪种说法正确( )

A．XYZ被高估

B．XYZ被低估

C．XYZ被公平定价

D．以上都不正确