Visiting a dietitian is one of the undertakings that greatly

Hello, everyone. Since I do not yet see an Expert Reply that touches on all the answer choices, I thought I would offer my own assessment of the question. Perhaps it will prove useful to the community. (Remember, I am only calling attention to issues as I see them, not suggesting that anything that anybody else may have written is incorrect.)


It should refer to a singular noun, not an entire noun phrase, and here, the referent for it can only be visiting a dietitian. Such usage is common in conversational English, but I would not expect to see a correct answer to an official SC question refer to a gerundive phrase as it.


I did not bother looking at this one beyond improves. The modifying phrase that greatly improves... is attached to undertakings, not to a single undertaking. In other words, there are at least two undertakings that improve health.


There is no problem with placing a pronoun ahead of its referent in the main clause, but here, it is still referring to the action of visiting a dietitian. Also, if you had any doubts about as before, notice that because is a safer bet. This iteration of the sentence is virtually identical to the original, just with the two halves transposed. If anything, you should feel better about eliminating both of them—there cannot be two correct answers.


Not only do the infinitive and gerundive forms of the two verbs not align well here—to do and visiting, respectively—we also get a freebie in improves, which is just as incorrect as it was in answer choice (B).


This option corrects all of our concerns and issues above. If there is no compelling reason to argue against it, then it is the one you should choose.

Sometimes it can help, when you see a long-winded sentence such as the above, to pare down a sentence to its essential elements, particularly if there are lengthy parts of the sentence that overlap across the answer choices. In this case, can result in the formation of a structured and controlled nutritional system that is personally suited to a specific individual is common to all options, so we can effectively ignore it and focus instead on the parts that distinguish one answer choice from another.

Good luck with your studies.

- Andrew