New York City is the largest city in the USA although

This is in fact a factual submission but our mission isn't to check for its accuracy but the structural arrangement.
Option A - Incorrect
The response by the author here isn't in any way different from the original content in the question. No extra information to support the claim. Nonetheless, a correct assertion, its clearly lacking in merit

Option B - Incorrect
There appears too much of emphasis placed on the subjects here with the unnecessary and unwarranted punctuation which is capable of giving a new meaning other than the intended one to the author's content.

Option C - correct
The structure of the sentence remain solid and convincing. The punctuation is appropriate here and the apostrophe punctuation on the USA shows clearly the language of possession when describing washington, DC as the capital.

Option D - Incorrect
It is correct but lacking in good structure. could have been re-written in a much simpler terms.

Option E - Incorrect
The sentence in here is lacking in good grammatical construction and arrangement. The punctuation is not appropriately fitting into where it has been used.