Just from experience and common knowledge, I would absolutely say C. Practice them.
Answer:
The square root of 9 is 3.
The word to is a preposition. there are no adverbs ( words describing a verb) conjunctions (and but or yet if so nor) interjection are at the front of a sentence before a comma but they usualy are they to show emotion
C. Fortunato will never leave the vaults again.
