by ohthatpatrick Mon Apr 15, 2013 10:56 pm
Sure thing.
As a quick recap of the passage leading up to that last line,
1st P - people are trying to articulate a theory that would explain the how/when/why of the civil rights movement.
2nd P - Three theories are mentioned and differentiated from each other.
3rd P - Some ppl don't like trying to use any of these theories because they all rely on "strain" to the system, have no predictive value, and seemingly ignore the political aspirations of the civil rights participants.
4th P - The author looks for some way to test how good any of these three theories are. "Problematically", economic data doesn't help us choose the best of the three, since you can find economic data to support any of them.
The author thinks a "better test" would be to see if the economic data that is relevant to each theory correlates well with news reports of social protests. (If social protests were going hand-in-hand with the economic data tied to "J-curve", for example, then "J-curve" would seem like a good explanation for what caused the social protests)
But the author says that none of the theories correlate significantly with the news reports.
So, same as the first half of the 4th paragraph ... we have a muddled, unclear situation, with no clear winner among the three theories.
(A) has to be wrong, because NONE of the theories correlate with the "better test". So there's no way the "better test" confirmed any of them.
(B) is acceptable, because since the "better test" didn't correlate well with any of the theories, it doesn't single out any of the theories as being stronger than the others.
(C) is wrong because it's too extreme. The fact that the test fails to support any of the theories does not show it's impossible to apply any theory to the civil rights movement.
(D) is wrong because there's no support whatsoever for the idea of biased coverage.
(E) is wrong because we have no support that the test verified anything. It didn't correlate well with any of the theories. That's all we know.
Hope this helps.