The answer is A agriculture
D. Darryl gives Mike a collectible football jersey.
Commodity money is a form of currency that's value exists within and of itself. A commodity is used to trade for the sum of money at which it has perceived value. If a collectible football jersey has been appraised at $250, then as a commodity, the jersey may be used to trade for goods or services of the same value.
The answer is, I believe, the Grand Canyon.
