Thank You.

I have had similar experience like you beside this question.

I think the point is cc is ‘never less than’ ps (though it could be possible that cc is more than ps.).

Always consider right AC in terms of the relationship between P and C (any missing assumption, any gap?), not background information. Many ACs are simply irrelevant to the relationship between P and C. Then, do the negation test. Let’s make this our habit.

Great review. Thanks. (Oh, BTW, some cover 1 to 100).

Thanks a lot. I got wrong since I forgot the point you mentioned…

Always think about Flaw in light of the relationship between Premise and Conclusion.

1. Correlation vs. Causation. 2. The more…, the more…3. Smoking, Drinking, Exercise can influence…4. (E)…can be altered by…

HoRangYi = Tiger

I agree. Sufficient Assumption Question: fill out the hole.

(E) sounds like a necessary assumption.

What the…

Also, "the more X, the more Y": This is not a correlation.