单选题：The gender gap needs to be closed because

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题目内容：
The gender gap needs to be closed because A．it isn't fair that boys are allowed to use computers all the time.
B．there isn't enough money for upgrading computers.
C．most of the causes may boil down to a question of money.
D．the ability to use computers is important in today's world.
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答案解析：

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