Question

Mario paid three bushels of rice for three boxes of wool at the market. What type of money did Mario use for this exchange?
fiat
commodity
representative
goods

Answer 1

It  can be deduced from the given that what Mario used as payment for the goods that he acquired is also goods. The answer to this item is commodity. It is a type of money that is not in a form of cash but has a value that can be an exchange for another commodity. 

Answer 2

Commodity. It is an object with inherent value.