Which of the Following Correctly Describes the Difference Between Commodity

Which of the following correctly describes the difference between commodity money and fiat money? ​

A) ​Fiat money is only used in Italy, and is issued by a major Italian automobile manufacturer to support Italian schools.
B) Commodity money is either made out of a valuable commodity like silver or gold, or is redeemable for a valuable commodity. Fiat money is not.​
C) ​Commodity money can only be used to buy commodities such as grains or lumber, while fiat money can be used to buy anything.
D) ​Fiat money is used during times of emergency, such as hurricanes or war, when the existing stock of commodity money is inadequate to purchase needed goods and services.