The answer is C it's "Comma and a subordinating conjunction."
have a great day!!!
He found his next door neighbor was funny and friendly.
If counterfeit is the underlined word then the answer is <span>imitation</span>
It depends on what you want to write about, as the question includes the word appropriate, B wouldn't be right, C is a bit complicated, and A is just not correct. I'd say its none of the above