I took too long with (A) and (B) so I am going to write this out for my own benefit. Don't mind me if you don't want to! This is a
weaken question.
There are more people living in central Glenwood than in central Redville
+
People generally walk only if close to home
→
The library in central Glenwood would be within walking distance of a larger number of library users
The big thing to note here is that there is a jump from talking about number of people who live in a city to the number of people who will use the library. Just because there are more
people living in Glenwood doesn't mean that it will be "within walking distance of a larger number of library
users." There could be a rural town of 200 people vs. a big city of 200,000 people and you could still have more
library users in the rural town. Just because there is more people doesn't mean more users.
Another thing to note is this idea of "walking distance." The answer choice doesn't touch on this but I feel like this is a shortcoming in the question. We know NOTHING about walking distance and it is a shame. The argument is additionally assuming that the library being in the same city means that it is "close to their homes." I can assure you that, if you live NYC, not everything in NYC is "close to your home." I may be wrong, but I feel like the wording of this question would be cleaned up on newer LSATs. Not explaining what "walking distance" is leaves a really bad taste in my mouth.
(A) This hinges on the word "currently." However, what is currently true may not actually have anything to do with what will be true when the library is moved to Glenwood. Suppose more Redville residents do currently walk to the library than Glenwood residents. Does this say much? Not really. Maybe the library isn't currently within walking distance for the majority of people in Glenwood who would use the library - maybe it will be when the library is moved. This also doesn't say anything about the number of people in Glenwood who actually will use the library.
(B) This also does use the word "currently" but it offers much more information that is helpful to destabilizing the argument that more library users will be within walking distance of the new library. This answer choice states that the number of people who would use the library in Glenwood is smaller than the number of people in Redville who currently use the library. Now I still don't exactly know anything about walking distance and whether or not the users from Redville will trek over to Glenwood but this does cast some doubt on the conclusion.
(C) This might strengthen by showing that there will continually be more and more people using the library yin Glenwood. However, what about the walking distance idea?
(D) We don't care about people that drive. We want people that walk!
(E) So this is saying that most of the people who currently walk would still go to the library! That's great and it actually strengthens the argument by showing that there shouldn't be a big drop (if any) in the number of users and potentially will be even more users - as the argument predicts! However, we still don't know anything about walking distance.
Am I crazy to think that the lack of information on "walking distance" is a really big issue to this (and the previous) question on this preptest? I feel like, without this information about what is actually considered "walking distance," the answers are
much more weak than they should be.