Other things constant,the demand for a product is the amount that:

A) sellers are willing and able to sell at alternative prices.
B) buyers purchase over different time periods.
C) sellers are willing to sell at a particular price.
D) buyers are willing and able to purchase at different prices.
E) buyers are willing to consume at a constant price.

Demand

A relation between the price of a good and the quantity that consumers are willing and able to buy per period, other things constant.

Willing and Able

The readiness and capability of individuals or groups to engage in a particular activity.

Buyers

Individuals or entities that purchase goods or services for personal use, resale, or production.