answer fast pls

22. If there is a decrease in the price of computers, the consumers of computers will benefit. What is our best measure of the dollar value of the benefit to consumers? a. The decrease in marginal utility. b. The increase in quantity c. The increase in consumer surplus. d. The change in the total amount of money spent on computers. e. The decrease in price. 23. The change in total cost from producing one additional unit of output is equal to a. the change in total variable cost from producing one additional unit of output. b. the change in total fixed cost from producing one additional unit of output. c. marginal cost. d. all of the above. e. (a) and (c) only. 24. Because of an externality, the social marginal cost of producing good A is greater than the private marginal cost of producing good A. Because of this, a. the socially optimal quantity of good A is greater than the market equilibrium quantity. b. the socially optimal quantity of good A is less than the market equilibrium quantity. c. we could move toward the socially optimal quantity of good A by using a Pigouvian tax. d. None of the above. e, (b) and (c)