Total surplus is:

A) the sum of consumer and producer surplus.
B) measured as the area between the supply and demand curves from their beginnings to their ends.
C) the total net gain to consumers from trading in the market.
D) the total net gain to producers from trading in the market.

Total Surplus

is the sum of consumer surplus and producer surplus, representing the overall economic benefit to society from trade or market activity.

Consumer Surplus

The split between the sum consumers would ideally pay for a good or service and the sum they actually end up paying.

Producer Surplus

The discrepancy between the price at which sellers are prepared to offer a product and the actual selling price they obtain.