SajjadAhmad
Although they cannot always distinguish between changes limited to one part of the supply chain
and those that will move through it, most analysts who have watched the market typically have concluded that heating-oil prices rise the year after the prices of crude oil rise.
A. and those that will move through it, most analysts who have watched the market typically have concluded
B. and the ones that will move through them, with most analysts who have watched the market typically concluding
C. and the ones that will move through it, most analysts who have watched it typically conclude
D. or those that will move through them, most analysts who have watched them typically concluded
E. or those that will move through them, with most analysts who have watched the market typically concluding
Source: GMAT Free
Official Explanation
Creating a filter: in the underlined portion of the original sentence, the pronoun "those" is suspicious, because it's a pronoun. However, the pronoun refers clearly to "changes." So the original sentence may not be defective. We'll proceed to (B).
Finding objective defects: in (B), "with" is not properly a conjunction, and it's not being used to convey its actual meaning, as in "along with." So (B) is out, as is (E), which also makes the "with" mistake. Choice (C) introduces a new pronoun, "it," appearing to destroy the intended meaning of the sentence, which in that case doesn't mention the market anymore. Choice (D) has a pronoun issue: "them" should be "it," to refer to the singular "supply chain." Choice (D) is out. We are down to one.
The correct answer is (A).