Answer: A. Money is the only good that can (or does) serve as a store of value.
Step-by-step explanation:
Money is generally acceptable as a means of making payment. It should be noted that money functions as a unit of account, medium of exchange, standard for defered payment, and store of value.
Money is not the only good that can (or does) serve as a store of value. Gold, Diamond can also be used as a store of value.
Therefore, the correct option is A.