The Term "Quantity Supplied" Is the Amount of a Commodity

The term "quantity supplied" is the amount of a commodity that

A) is exchanged between firms and consumers during a given period of time at a given price.
B) firms wish to sell at a given price during a given period of time.
C) households wish firms would sell during a given period of time at a given price.
D) is supplied at a fair market price.
E) firms actually sell during a given period of time at a given price.