According to a recent study of consumer spending on prescription medications, increases in the sales of the 50 drugs that were advertised most
heavily accounts for almost half of the $20.8 billion increase in drug spending last year, the remainder of which came from sales of the 9,850 prescription medicines that companies did not advertise or advertised very little.
(A) heavily accounts for almost half of the $20.8 billion increase in drug spending last year, the remainder of which came
According to a recent study, increases in the sales of the 50 drugs- Subject
The singular verb “
accounts” does not agree with the plural subject “
increases”
The pronoun “which” does not have a clear antecedent.
Eliminate A.
(B) heavily were what accounted for almost half of the $20.8 billion increase in drug spending last year; the remainder of the increase coming
“Were what accounted” is wordy and awkward.
The remainder of the increase coming- “coming” is a participle/modifier and not a verb. After a semicolon, we need to have an independent clause. Without a verb, the part after the semicolon becomes a sentence fragment and is incorrect.
Eliminate(C) heavily accounted for almost half of the $20.8 billion increase in drug spending last year, the remainder of the increase coming
Option C corrects the errors in options A and B.
"The remainder of the increase"- noun
"Coming from sales of" - Modifier
This construction- Noun + noun modifier- is called absolute modifiers. It modifies the entire preceding clause.
Correct(D) heavily, accounting for almost half of the $20.8 billion increase in drug spending last year, while the remainder of the increase came
"
Accounting" is a modifier and not a verb. There is no corresponding verb for “increases in the sales”.
Eliminate(E) heavily, which accounted for almost half of the $20.8 billion increase in drug spending last year, with the remainder of it coming
“Which” introduces a dependent clause. There is no corresponding verb for “increases in the sales”.
Eliminate