Sentence Correction (SC) | Re: In 1713, Alexander Pope began his translation of the Illiad,

HelloBinhFantasia - Lets first understand what 'it' in this case refers to? And as you might have guessed the pronoun 'it' is referring to 'work' here.

Now lets replace the underlined portion with the option C

With Pronoun 'it'
In 1713, Alexander Pope began his translation of the Illiad, a work that had taken seven years to complete and that literary critic Samuel Johnson, Pope’s contemporary, pronounced
...

---