I am not understanding how D is the correct answer. I actually chose D before blind review, mainly as a gut instinct to look back over later. Upon blind review, I changed my answer to B.
I now understand why B is wrong, as all we know is that many municipalities will choose rent controlled ordinances for short term gain, but there is no way of knowing whether or not they will choose to repeal them when the long-term disadvantages set in.
What I don't understand is how D is not subject to the exact same flaw. I understand that we know that many municipalities will choose rent control ordinances, which in theory would eventually lead to a shortage of rental units, but how can we properly infer that each municipality in that group either does or will actually make it to the point of experiencing that long-term disadvantage? Isn't it possible that they will all repeal the ordinances before shortages become a problem?
Maybe the reasoning is because while it is possible that they repeal before the shortages arise, we should assume that, because they are entirely motivated by the short-term gains, they would not repeal the ordinances before the shortages arise?
If there is a better way of reasoning this out please let me know, thanks! I am probably overthinking this one....
Q7
I initially eliminated E because I noticed that the passage said crude oil came in contact with "most" of the pump. I thought it was possible that with both pumps, "many" parts are in contact with crude oil (thinking that many could be relative and actually only mean some) so in my mind it was possible that this was not a difference
I can see why A should be eliminated now, mainly because the level of maintenance and the cost of the material of the centrifugal pump are never mentioned, so we don't actually know if it is more expensive or requires more maintenance
I'm still struggling to see why my concern about "most" vs "many" does not apply, but my best guess is that it has something to do with how in RC, words are not used in the same way that they are for LR, so my mental translation of "many" to "some" should not apply. Also, since the design for the first pump was its primary drawback, and the second pump is described as having a "proven design"we can infer that the flaw of the first, lots of contact with crude, is not present in the second.
Let me know if you see a better way of reasoning this out- this is just what makes the most sense to me!