Able to synthesize chemical energy or obtain it from an

Question

Able to synthesize chemical energy or obtain it from an external source in both the presence and the absence of oxygen, kingdom Eubacteria  is the only one of the six-kingdom classification system that displays  the full range of metabolic diversity.

(A) is the only one of the six-kingdom classification system that displays
(B) is alone out of the six-kingdom classification system since they display
(C) alone among the six kingdoms that comprise the classification system displays
(D) are the only ones out of the six kingdoms that comprise the classification system in displaying
(E) only of the six-kingdom classification system displays

hogann · Answer

I like A as well

There doesn't seem to be anything wrong with the sentence.

gmattokyo · Answer

I'd chosen A too, which is not correct.

belladipo · Answer

I thought was A too but after a while, paying more attention, I realized that the correct answer should be D.

I am pretty sure of that. The reason is simple. It is the only one with the plural form and the correct idiom "one out of ......" (ones out for the plural).

OA?

gmattokyo · Answer

D isn't correct either...
It uses the plural "are" to describe singular kingdom Eubacteria... also "in displaying" is awkward

gmattokyo · Answer

Posting the answer before I forget abt it.. this is from the mock-test:

This sentence displays a special kind of pronoun-antecedent agreement error. Describing kingdom Eubacteria as one of something means that the entity that the singular kingdom is one of must be plural.

Think about simpler cases: "This program is one of my favorite shows." NOT "This program is one of my favorite show."

Kingdom Eubacteria is the only one of...the classification system (a singular noun) is incorrect.

Additionally, the original construction is unnecessarily wordy and arguably redundant. "Only" and "one" mean almost the same thing; if Eubacteria is "only" or "alone", we know that it is "one".

Choice B retains the "singular item out of a singular entity" error. Additionally, they is used to refer to a singular pronoun, kingdom Eubacteria.

Choice C uses a simpler and grammatically correct construction to express the same idea. Kingdom Eubacteria, a singular noun, agrees with the singular verb displays. Alone among is an idiomatically correct expression. That comprise the classification system is an adjective clause immediately following the noun it describes, the six kingdoms. The correct answer is C.

pierrealexandre77 · Answer

I'm sorry but bacteria is plural

My vote is for D which is wordy but seems to be grammatically good

What is OA?

vraptor · Answer

The stimulus is referring to the Eubacteria kingdom from among the 6 kingdoms. So subject is singular and hence (D) is not the right choice.

Able to synthesize chemical energy or obtain it from an

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