Nickel Two

Two U.S. coins are worth $ 0.30, and one of them is not a coin. What parts money?
I need the answer, but I think it be impossible for answers than ever, but I can see the logic and I think that is supposed to be viewed that way, but it's a trick question, yes. A) impossible. B) A nickel and a quarter. C) Three dimes. D) Two dimes and two.
B. He said one of them is not a coin. Not so much.
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