单项选择题


Computer programmer Kevin Hanley earns $100,000 a year designing new computer games, yet he cannot find a bank prepared to let him have a check card. Instead he has been told to wait until he is 18.
The 16-year-old boy works for a small firm in Pittsburgh, where the problem of most young people of his age is finding a job. Kevin’s firm releases (发布) two new games for the home computer market each month.
But Kevin’s biggest headache is what to do with his money. Though Kevin earns a lot of money, he cannot drive a car, or buy a house, or obtain (获得) credit cards.
He lives with ’his parents in Pittsburgh. His company has to pay $200 a month in taxi fares (费用) to get him five miles to work and back every day because Kevin cannot drive.
"I got this job because the people who run the firm knew I had already written some programs," Kevin said. Most of Kevin’s spare time is spent working. "Unfortunately, computing was not part of our studies at school," he said, "But I had been studying it in books and magazines for years in my spare time. I knew what I wanted to do and never considered staying on at school. Most people in this business are fairly young anyway."
Kevin added, "I would like to earn a million and I suppose early retirement (退休) is a possibility. You never know when the market might disappear." Kevin left school because ______.

A. he did not enjoy school
B. he was afraid of getting too old to start computing
C. he wanted to work with computers and staying at school did not help him
D. he wanted to earn a lot of money