从没见过的逻辑题，向nn们请教！

All of John friends say they know someone who has smoked 40 cigarettes a day for the past 40 years and yet who is really fit and well. John does not know anyone like that and it is quite certain that he is not unique among his friends in this respect.

If the statements in the passage are true, then which one of the following must also be true?

(A) Smokers often lie about how much they smoke.

(B) People often knowingly exaggerate without intending to lie.

(C) All John friends know the same lifelong heavy smoker.

(D) Most of John friends are not telling the truth.

(E) Some of John friends are not telling the truth.

OA is E，who can explain ?

我觉得这个问题可以抓住论述中的几个重要的词汇：all,quiter certain and not unique.

A.脱离了原题的目的；

B.同上；

C.用了ALL，排除；

D.用了most,排除；

所以E.

我也正在学习逻辑这一块，也很受折磨，也没有形成自己的一个思路。苦恼

Thank you cherry