请教大全3-5，以前讨论好像不充分

5.     A weapons-smuggling incident recently took place in country Y. We all know that Y is a closed society. So Y’s government must have known about the weapons.

Which of the following is an assumption that would make the conclusion above logically correct?

(A) If a government knows about a particular weapons-smuggling incident, it must have intended to use the weapons for its own purposes.

(B) If a government claims that it knew nothing about a particular weapons-smuggling incident, it must have known everything about it.

(C) If a government does not permit weapons to enter a country, it is a closed society.

(D) If a country is a closed society, its government has a large contingent of armed guards patrolling its borders.（E，感觉范围扩大了，不过D显然是无关的）

(E) If a country is a closed society, its government has knowledge about everything that occurs in the country.

先说当时自己的做题过程，先看问题发现本题问assumption，读题时发现closed society和know weapons之间明显存在gap，马上去寻找能搭桥的选项，ABC一看到不是从closed society开始推理的直接排除，读CD，发现D中有armed的什么什么，没细看，E是everything (当时感觉是绝对词汇，同时扩大了范围)，马上排除E，直接选D。最后当然是错了。

现在细读题，D应该是无关的，但E总感觉太绝对了，干嘛要everything，只知道weapon相关的的信息就可以了，不像是assumption. 还请大家指教。

In D, has a team of patrolling is not the required condition that is needed to specify the necessity of knowing what is going on in the country so that the government will know the weapon-smuggling in this country.

E if the government knows everything just like God, it will know the weapon-smuggling in this country.