Quantity Demanded Is Defined as the

Quantity demanded is defined as the

A) quantity of a product that consumers are willing and able to buy at a given price.
B) quantity of a product that sellers are willing and able to buy at a given level of income.
C) quantity of a product that consumers and producers are willing and able to buy, given their level of preference.
D) quantity of a product that consumers are willing and able to sell at a given price.