Economists use the term "demand" to refer to:

A. a schedule of various combinations of market prices and amounts demanded.
B. an upsloping line on a graph that relates consumer purchases and product price.
C. the total amount spent on a particular commodity over a stipulated time period.
D. a particular price-quantity combination on a stable demand curve.

Demand in economics refers to the amount of a good or service consumers are willing and able to purchase at various prices. It is depicted through a demand curve, which shows the relationship between price and quantity demanded. Quantity demanded is a specific point on the demand curve, emphasizing the broader concept of demand.

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