Which of the following groups is the LEAST likely to be poor?

The profit-maximizing monopolist, faced with a negative-sloping demand curve, will always produce:

a. at an output greater than the output where average costs are minimized b. at an output short of that output where average costs are minimized c. at an output equal to industry output under pure competition d. a and c e. none of the above

Quarts of orange juice at a local grocery store are priced at one for $3.00, or two for $5.00 . The marginal cost of buying a second quart of orange juice:

a. equals $2.00. b. equals $2.50. c. equals $3.00. d. equals $5.00.