Average total cost is found by subtracting AFC from AVC

Professional football players receive, on average, higher wages than professional soccer players in the United States because

A) football is a more dangerous sport. B) professional football teams can draw huge crowds and charge high prices for tickets. C) professional football teams use a draft system. D) the soccer season is longer and so players will be unemployed for a smaller portion of the year.

To a firm facing constant input prices, increasing marginal returns

a. means that each additional unit of output costs more to produce than the previous unit b. means that the marginal product of the variable input decreases as more of the input is used c. can occur due to specialization and division of labor d. usually occur at very high rates of output e. can never occur