Unlike a "service," a "good"

The barter system is rarely used today because:

In the short run, a firm attempting to minimize losses:

a. must leave the industry in order to maximize opportunity costs. b. will produce as long as marginal cost equals marginal revenue. c. will produce as long as total revenue exceeds total variable cost. d. will produce as long as total revenue exceeds total fixed cost. e. will produce as long as competitors continue to produce.