关于outside the scope与irrelevant的区别疑问

fannybeibei

在什么情况下，是属于irrelevant,什么情况又是属于outside the scope？
E.g.  OG-11 112
In tests for pironoma, a serious disease, a false positive result indicates that people have pironoma when, in fact, they do not; a false negative result indicates that people do not have pironoma when, in fact, they do. To detect pironoma most accurately, physicians should use the laboratory test that has the lowest proportion of false positive results.

Which of the following, if true, gives the most support to the recommendation above?

(A) The accepted treatment for pironoma does not have damaging side effects.

(B) The laboratory test that has the lowest proportion of false positive results causes the same minor side effects as do the other laboratory tests used to detect pironoma.

(C) In treating pironoma patients, it is essential to begin treatment as early as possible, since even a week of delay can result in loss of life.

(D) The proportion of inconclusive test results is equal for all laboratory tests used to detect pironoma.（E）

(E) All laboratory tests to detect pironoma have the same proportion of false negative results

(E) is correct
但答案解释中，A属于outside the scope，而C属于irrelevant
想问NN这两个怎么区别呀？

tb18

我觉得两个都属于irrelevant-.-

fannybeibei

别沉了，还没人回答我呢

fannybeibei

期待答案ing。。。。。。。自己顶