题目内容：
阅读下列短文,回答题.William Kunz is a computer genius(天才).When he was just 11, Kunz started writing soft-ware programs, and by 14 he had worked out his own computer game.As a high school first-yearstudent in Houston, Texas, he won first prize in a science fair for a program he wrote.In his thirdyear, he took top prize in an international science and engineering fair for designing a program toanalyze and sort DNA patterns.
Kunz went to attend Carnegie Mellon, one of the nation' s highest-ranked universities in computer science.After college he got a job with Oracle in Silicon Valley, writing software used bycompanies around the world.
Three years later, Kunz is in his first year at Harvard Business School.He left software engineering partly because he earned much less than his friends who were going into law or business.
He also worried about job security(保障), especially as more companies move their programmingoutside the country to lower costs.
What does the first paragraph mainly tell us? A．Kunz won several top prizes.
B．Kunz liked taking part in fairs.
C．Kunz designed several programs.
D．Kunz had a gift for programming.
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