In addition to the boom in tax revenue, the federal government’s books
are being helped by lower defense spending, a drop in outlays for benefits like Medicaid, and proceeds from the sales of General Motors and Chrysler, the automakers that were taken over by Washington in 2009.
(A) are being helped by lower defense spending, a drop in outlays for benefits like Medicaid, and proceeds from the sales of General Motors and Chrysler, the automakers
(B) have been helped by lower defense spending, a drop in outlays for benefits like Medicaid, and by proceeds from the sales of General Motors and Chrysler, automakers
(C) have been helped by lower defense spending, a drop in outlays for benefits like Medicaid, proceeds from the sales of General Motors and Chrysler, and by the automakers
(D) are being helped by lower defense spending, by a drop in outlays for benefits like Medicaid, and proceeds from the sales of General Motors and Chrysler, the automakers
(E) were helped by lower defense spending and a drop in outlays for benefits like Medicaid, also by proceeds from the sales of General Motors and Chrysler, the automakers
The most obvious decision point in this problem is the verb choice at the beginning, but it is a false decision point!
All of these tenses create a logical timeline, so you need to look elsewhere for your decisions.
At the end of the choices you have a series that needs to be parallel.
Choice B violates that standard by adding an additional "by" in front of "proceeds."
C does it in front of "the automakers," and D does the same in front of "a drop".
In each case, either all items need "by" or only the first one needs "by," so all are incorrect.
Choice E improperly connects the list, as "..., also by" is not a valid connector after a comma.
Only choice A properly connects the list and keeps it parallel.
https://www.nytimes.com/2014/04/11/business/tax-revenue-soars-decreasing-deficit-us-says.htmlIn addition to the boom in tax revenue, the federal government’s books
are being helped by lower military spending, a drop in outlays for benefits like unemployment insurance, and payments to the Treasury from Fannie Mae and Freddie Mac, the mortgage giants that were taken over by Washington in 2008.