Concept:Commodity money is a type of money that has value both as money and as a commodity.Explanation:Commodity money has intrinsic value, meaning it can be used for its own sake, such as gold, silver, cattle, or beads.Currency notes are fiat money, not commodity money.Mobile money and cheques are only mediums of exchange, not commodities with intrinsic value.Silver has value as a metal and can also be used as money.Answer:D. silver