The twenty-four biochemical labs in the state all compete for shares o

OFFICIAL EXPLANATION






MAGOOSH OFFICIAL EXPLANATION

[My slight edits and comments are in brackets.]

Split #1: to have a comparison with the word than, we need a comparative [word such as more in the sentence.]
Choice (E) uses no comparative, so it is wrong.

Split #2: [each other, another, all others]
Think about the competition.
If I am in one lab, I want my lab to be more successful than whom?
(A) "each other" — no, this is not the "each other"/"one another" case.
[We use each other to describe situations in which two actors are dealing with each other.
If more than two actors interact, we use one another.]

(B) & (D) "the others" - maybe

(C) "one other team" - no, a lab wants to beat all others, not just one other
Choices (A) & (C) are incorrect.

Split #3: Pronoun-antecedent agreement in the underlined section.
(A) "all ... their" -- both plural = correct
(B) "all ... their" -- both plural = correct
(C) "each ... their" -- singular/ plural = incorrect
(D) "each ... its" -- both singular = correct
[(E) "each ... its" -- both singular = correct]
Choice (C) is incorrect.

Split #4: as mentioned above, think about the logic of the situation.
Each lab wants something unique: they want their own lab, and no other lab, to be the most successful.
In this sense, each lab wants a different outcome, so we can[not] lump them all together in a plural subject.
[In essence, we want to use "each" in order to stress that each lab is pitted against all others.]
The plural all is logically incorrect: we need the singular each.
Choices (A) & (B) are incorrect.

[Split #5: Placement of the modifier "more successfully."

Each lab is striving to present its case for funding more successfully than the others.
In options B and E, more successfully seems to modify striving rather than present its case for funding.
More successfully should come after we know what each lab strives for.
Options B and E are incorrect.]

Because of these splits, choice (D) is the only possible answer.

COMMENTS

MorallyDeficient and desertEagle (great usernames, the both of you), welcome to SC Butler.
(desertEagle, I believe this welcome may be your second. Date-wise, I believe this is your first. Automatic kudos on the first welcome.)
I am always glad to see new people join this loosely knit and wide-ranging Butler crew.

All aspirants have a standing invitation to post.
I promise that doing so will help your verbal score.
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Shy? Okay. Post anyway.

MorallyDeficient , I am bumping your answer to Best Community Reply.