beyond等于out of?

问题描述:

beyond等于out of?
有本书上解释说beyond等于out of,可是又一道题是这样的:
It's _____my power to make a final decision on the matter.I'm not the boss here
选项中有:out of 也有beyond,可是答案却选了beyond,这是为什么?

out of “在...外面" 用于看得见的地方,for example:the tree is out of the house.
beyond 一般是用于抽象意义的“在...之外”用于能力的时候是超越,超过的意思,指”超出能力范围”所以这里选beyond