Which best explains the law of demand?
A.
As the amount of a good increases, the price that consumers are willing to pay decreases.
B.
As the price of a good decreases, the amount that consumers are willing to purchase decreases.
C.
As the price of a good decreases, the amount that consumers are willing to purchase increases.
D.
As the amount of a good increases, the price that consumers are willing to pay increases.