Thanks for posting,
pqthinh2000!
Unfortunately, it looks like the question you're working on is not a real LSAT question. I have to advise
very strongly against using non-LSAC questions to study and prepare for the LSAT.
Fake LSAT questions are extremely poor substitutes for actual, released official LSATs. They are often written poorly, sometimes egregiously so. Occasionally they are actually just blatantly incorrect. In the very best of cases, they are typically just un-LSAT-like in tone and style. Official LSATs are available from a variety of licensed sellers, including the LSAC itself.
There are zero good reasons to practice with fake LSAT questions, and many reasons not to.
All that being said, here is a rough breakdown of how to tackle this type of question. The question is asking us what the author relies on in making his argument. At a glance, this might sound like an assumption question, but it turns out to be an
Analyze the Argument Structure question.
First stop, the core:
PREMISE: 1)We banned smoking on commuter trains because it harmed others
2) Alcohol on commuter trains poses just as much danger to others as smoking
CONCLUSION: We should ban alcohol on commuter trains
Only
(E) matches what's happening in this argument. Premise #2 is a comparison between the effect of smoking and the effects of alcohol - i.e., a comparison of the danger to others.
The incorrect answers(A) The author never says, implies, or assumes that alcohol is dangerous to the
drinker's health. The point is that it's dangerous to other people.
(B) The proposed law isn't based on protecting people from their own drinking, but rather, protecting people from OTHER people's drinking.
(C) "emotionally charged descriptions" is awfully hard to define, but nothing in this argument comes close to qualifying.
(D) I'm not sure how we would have any idea that the author was relying on our sympathy unless he came right out and said "don't you feel sorry for these commuters!?" Also, the dangers of drunk drivers affect
everyone, not just the commuters.
While I hope this helped you break through on this particular question, I strongly recommend that you immediately stop working on non-LSAT questions, and obtain some official material.