The "Quantity Demanded" of Any Good or Service Is_{--------------------} During

The "quantity demanded" of any good or service is_{--------------------} during a specified time period and at a specified price.

A) the amount people are able to buy
B) the amount people are willing to buy because it is the amount sellers are willing to sell
C) the amount people are willing to buy
D) the amount people are willing and able to offer
E) the amount people are willing and able to buy