4. Total economic surplus is e a. the sum of all the individual economic surpluses gained by buyers and sellers in a market eb. the sum of producer and consumer surplus in a market e c. maximized at market equilibrium ed. a measure that can be used to determine efficiency ●e. all of the above4. Total economic surplus is a. the sum of all the individual economic surpluses gained by buyers and sellers in a market. b. the sum of producer and consumer surplus in a market. c. maximized at market equilibrium. d. a measure that can be used to determine efficiency. e. all of the above