The reason that iron fertilization of the earth's oceans has not been

Question

The reason that iron fertilization of the earth's oceans has not been implemented is because scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming .

A. The reason that iron fertilization of the earth's oceans has not been implemented is because scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming

B. The reason that iron fertilization of the earth's oceans has not been implemented is that scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming or not

C. Iron fertilization of the earth's oceans has not been implemented because scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming

D. Iron fertilization of the earth's oceans has not been implemented because scientists are still unsure if this expensive and extreme method can actually alleviate the effects of global warming

E. The reason that iron fertilization of the earth's oceans has not been implemented is that scientists are still unsure whether this expensive and extreme method can actually bring about the alleviation of global warming effects

sj296 · Answer

A.  The reason  that iron fertilization of the earth's oceans has not been implemented is  because  scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming....... Redundancy issue

B. The reason that iron fertilization of the earth's oceans has not been implemented is that scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming  or not ..........................'or not' Not needed.

C.  Iron fertilization of the earth's oceans has not been implemented because scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming ..............Looks fine

D. Iron fertilization of the earth's oceans has not been implemented because scientists are still unsure  if  this expensive and extreme method can actually alleviate the effects of global warming........................Wrong usage of 'if'

E. The reason that iron fertilization of the earth's oceans has not been implemented is that scientists are still unsure whether this expensive and extreme method can actually  bring about the alleviation  of global warming effects.......................Verbose

OA should be C

Bunuel · Answer

OFFICIAL EXPLANATION

The reason that iron fertilization of the earth's oceans has not been implemented is because scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming.

A. The reason that iron fertilization of the earth's oceans has not been implemented is because scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming

This answer is stylistically flawed. Using both  the reason  and  because  is redundant.

What helps us identify this question as a Redundancy question as well as identify this mistake is the following Stop Sign: the reason + because

B. The reason that iron fertilization of the earth's oceans has not been implemented is that scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming or not

Although this answer choice corrects the original Redundancy error by removing  because , it creates another stylistic error. In the GMAT, the addition of the phrase  or not  at any point after the word  whether  is considered redundant.

C. Iron fertilization of the earth's oceans has not been implemented because scientists are still unsure whether this expensive and extreme method can actually alleviate the effects of global warming

This answer choice eliminates the redundancy caused by using both  the reason  and  because .

D. Iron fertilization of the earth's oceans has not been implemented because scientists are still unsure if this expensive and extreme method can actually alleviate the effects of global warming

Although this answer choice corrects the original Redundancy error by removing  because , in the GMAT, the word  if  should be used in Conditionals only. Since in this question there is no condition,  if  should be replaced by  whether .

Think of  whether  as a choice between two possibilities dealing with the same subject or as a yes/no question.

Example: I do not know whether this will work. (yes or no)

He was not sure whether he wanted banana or chocolate cake. (a choice between 2 possibilities)

E. The reason that iron fertilization of the earth's oceans has not been implemented is that scientists are still unsure whether this expensive and extreme method can actually bring about the alleviation of global warming effects

Although this answer choice corrects the original Redundancy error by removing  because , it creates additional redundancy through the wordy phrase  actually bring about the alleviation .

The reason that iron fertilization of the earth's oceans has not been

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GMAT Sentence Correction (SC - EA only) Questions

The reason that iron fertilization of the earth's oceans has not been

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards