ABCs (it would be abc's if it was lowercase)
An apostrophe doesn't pluralize a word, an 's' does.
This is a sentence, it is complete.
D. Rewriting the definition of a word in the form of a question
Answer
The extent of Shakespeare’s legacy 450 years on from his birth is incalculable. But this, of course, does not stop some from trying.
Explanation:
