Bunuel
Although Jane kept up appearances and seemed
to be fine, the deciding to leave her husband took a huge toll on her.
A. to be fine, the deciding to leave her husband took a huge toll on her
B. fine, deciding to leave her husband took a toll on her
C. fine, the deciding to leave her husband took a huge toll on her
D. to be fine, the decision to leave her husband took a huge toll on her
E. fine, the decision to leave her husband took a huge toll on her
OFFICIAL EXPLANATION
Although Jane kept up appearances and seemed to be fine, the deciding to leave her husband took a huge toll on her.A. to be fine, the deciding to leave her husband took a huge toll on her
This answer choice is grammatically incorrect: an article (in this case, the) requires a noun. Deciding is not a noun. B. fine, deciding to leave her husband took a toll on her
While this answer choice corrects the original Parts of Speech mistake, it also changes the meaning of the original sentence by omitting the word huge.C. fine, the deciding to leave her husband took a huge toll on her
This answer choice repeats the original Parts of Speech mistake: an article (in this case, the) requires a noun. Deciding is not a noun.
Note that stylistically, this answer choice is better than the original sentence as it is more concise - the omission of the words to be after seemed did not result is any meaning loss. However, grammatical correctness is more important than stylistic preferences. The correct answer to a Sentence Correction question can be stylistically flawed (that is, redundant or ambiguous), but can never be grammatically incorrect. D. to be fine, the decision to leave her husband took a huge toll on her
While this answer choice corrects the original Parts of Speech mistake, it is stylistically flawed (redundant). There is another answer choice that is also grammatically correct and is better than this answer choice as it is more concise, that is expresses the same meaning in fewer words.E. fine, the decision to leave her husband took a huge toll on her
This answer choice corrects the original Parts of Speech mistake by changing deciding to decision.