Answer:
C. People accept it in exchange for goods or services.
Explanation:
Money is a type of thing that is valuable because we know people accept it. Money can be used to purchase goods, and many other things. According to Subjecto.com, " Money can be used to purchase goods and services even though it is no longer backed by gold. Security measures prevent counterfeiting but do not add value." Seeing this, the only answer reasonable is C.
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