Time is something from which we can’t escape. Even if we ignore it, it’s still going by, ticking away, second by second, minute by minute, hour by hour. So the main issue in using your time well is, “Who’s in charge?” We can allow time to slip by and let it be our enemy. Or we can take control of it and make it our ally（这个词）.

56. The underlined word “ally” in Para. 3 most likely means somebody or something that is ______.
A. your slave and serves you B. your supporter and helps you
B. under your control and obeys you D. under your influence and follows you


从这段话中猜测ally的意思，我选的是C，考虑了很长时间，从C到A，再到C，我觉得区别不是很大，现在也想不通为什么B更好，难道就是因为ally的本义如此？

我是从上文来判断的：“Who is in charge?”既然是负责，那就有一个主仆关系或者隶属关系，首先我就把BD排除掉了，想想怎么让时间听从/服从人的意志呢，我改成了A，又想怎么让时间为人服务呢，然后又改回去了。

卷子在附件里，各位高手帮忙看看。
一个选择2分，1分=3000名，我真的很想知道这6000名的差距怎么出来的，谢谢了～

My answer is B:

You can't control "Time": you can't ask "Time" to follow your instruction, and you can't influence "Time". A, C, and D are eliminated, so the answer must be B.