The visiting lecturer presented some lesser-known facts about

Question

The visiting lecturer presented some lesser-known facts about snowflakes: for example,  they are not white, they have exactly six sides, they do not all have a unique pattern, and they—along with ice—constitutes  about 75 percent of Earth’s freshwater.

A. they are not white, they have exactly six sides, they do not all have a unique pattern, and they—along with ice—constitutes

B. it is not white, all snowflakes have exactly six sides, not all snowflakes have a unique pattern, and snow—along with ice—constitute

C. it is not white, it has exactly six sides, not all of it has a unique pattern, and it—along with ice—constitutes

D. they are not white, all have exactly six sides, not all have a unique pattern, and they—along with ice—constitute

E. they are not white, all has exactly six sides, not all has a unique pattern, and it—along with ice—constitutes

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jadlune · Answer

I think that the right answer is a D.

Abhishek009 · Answer

Clearly (D) for the following errors in other options -

(A) snowflakes---constitutes , incorrect.
(B) snowflakes---it,constitutes , incorrect
(C) snowflakes---it, incorrect
(E)snowflakes----- constitutes , incorrect

Hence , Answer must be (D)

kmishra760 · Answer

Isn't D non-parallel when the added "they". Since all other items in the list do not have they?

Bunuel · Answer

KAPLAN OFFICIAL EXPLANATION

(D)

Step 1: Read the Original Sentence Carefully, Looking for Errors

The underlined text begins with the plural pronoun “they,” which correctly refers to “snowflakes.” What follows is a list, so check that all items in the list are in parallel form. In fact, they are: “they are . . ., they do not have . . ., they . . . constitutes” share a subject-plus-verb structure. However, the last verb, “constitutes,” does not agree with the plural pronoun “they.” (The phrase between the dashes, “along with ice,” does not create a compound and thus plural subject.) Therefore, this sentence is incorrect as written.

Step 2: Scan and Group the Answer Choices

While (A), (D), and (E) begin with “they,” the other choices begin with “it.”

Step 3: Eliminate Choices Until Only One Remains

Since (A) has the subject-verb agreement error noted in step 1, eliminate it. Since (B) and (C) begin with the wrong pronoun to represent “snowflakes,” eliminate both of these choices as well.

Now read (D) and (E) in parallel. They differ after the first comma, where (D) has “all have” while (E) uses “all has.” The pronoun “all” represents “snowflakes” and is thus plural, so the plural verb “have” is needed. Eliminate (E) and read (D) back into the sentence:

The visiting lecturer presented some lesser-known facts about snowflakes: for example,  they are not white, all have exactly six sides, not all have a unique pattern, and they—along with ice—constitute  about 75 percent of Earth’s freshwater.

The visiting lecturer presented some lesser-known facts about

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GMAT Sentence Correction (SC - EA only) Questions

The visiting lecturer presented some lesser-known facts about

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