Robert Carroll wrote:Hi lday,
The reason answer choice (B) is incorrect is that the author is not introducing the possible correlation of federal intervention and black economic progress. Such a possible correlation has been discussed already - the sentence before the one identified in the question itself talks about this. The author thus can't be introducing the factor at that point, because the sentence starting "True, ..." presupposes that the discussion of the federal government's role has already been initiated, but that there is some further clarification necessary of the author's viewpoint about that role.
Answer choice (A) is correct because the author, having brought up a possible relation between the federal government's intervention and black economic progress, realizes that opponent of such a theory may not agree. The author is trying to head off criticism before it undermines his/her point, so the sentence is intended to anticipate an objection. In other words, "True, what I just said might be incorrect, but allow me to explain." The partial explanation occurs in the last sentence of the passage.
Robert Carroll
I interpreted B to mean that it was introducing a third previously undiscussed reason for economic progress, which is changing attitudes.
The overall argument seems to flow like this:
Correlation between government action and black economic progress weakens the continuity theorists argument about educational forces.
The anticipated objection is that correlation does not equal causation. So maybe a THIRD factor caused both: changing attitudes.
He then gives some reason why that could be true, but then ultimately rejects it because the law has its greatest effect on the south where attitudes haven't changed much. Therefore it must be federal intervention that caused the progress.
It seems like the authors concession does both A and B. It anticipates an objection, but then introduces the third factor to strengthen his argument that educational forces are an inadequate explanation.
Is it because he rejects this third reason?