Alberto is a carpenter. He needs a new saw in order make more cabinets to sell to his buyers. To do this, he sells a bench he has made, and uses the money to purchase a new saw. What conclusion can you make using this example? A) Alberto is using money as a store of value. B) Alberto is using money as a unit of account. C) Alberto is using money as a medium of exchange. D) Alberto is using money as a means of deferring payment.