TTGWD20-3 重开一贴～对这题我还有疑问

Q3:

The state has proposed new rules that would set minimum staffing levels for nurses, rules intended to ensure that at least one nurse is assigned for every four patients put through triage in a hospital emergency room.

1. rules intended to ensure that at least one nurse is assigned for every four patients put through triage in a hospital emergency room
2. rules with the intent of ensuring one nurse at least to be assigned for every four patients to be put through triage in a hospital emergency room
3. rules intending to ensure at least one nurse is assigned for every four patients in a hospital emergency room put through triage
4. with the intent of ensuring that at least one nurse should be assigned for every four patients in a hospital emergency room that are put through triage
5. and this is intended to ensure one nurse at least to be assigned for every four patients put through triage in a hospital emergency room

答案是A.

我觉得A没错，但是我很想知道E错在哪里？and this is 不可以指代前一句么？one nurse at least 我怎么觉得也有这样的说法呢？put through triage 是作为过去分词来修饰patients么？请NN解疑。

1 is intended这个被动很怪异啊？是谁发出来的动作啊？用被动要有明确标志

2 one nurse at least 的话就不是说至少one nurse， 而是说 one nurse至少被assigned for...这个动作了，没有at least one nurse 好

3 我觉得put through triage是修饰patients的

4 还有我觉得A和E比较的时候我想到的是，ETS是很喜欢重复一下名词的这种方式，OG里也有不少例子