Yes they are both forms of a noun.
Hear are other examples of nouns:
Sydney, boy, Paris, city and desk.
If you have it, it is a noun
The correct answer is C.
In A, the correct word should be "affected."
In B, the correct word should be "effect."
In D, the correct word should be "complemented."
Only C. uses the word in quotations correctly: The teacher referenced the book.
He doesn't really mean any ill will towards Tom, he just loves and wants Daisy and .He took the blame for Myrtle's death, letting Daisy completely off the hook.
