Refer to the above figure. The marginal benefit of pollution abatement is curve

Air travel from New York to Miami costs $300 and takes 6 hours. A bus ticket between the cities costs $150 and takes 56 hours. Other things constant, the minimum value of one's time that would induce a rational individual to fly rather than drive would be

a. $1 per hour. b. $3 per hour. c. $5 per hour. d. $50 per hour.

Economic growth can be defined as

A. the rate of growth in the productivity of labor. B. the rate of growth of labor plus the rate of growth of capital plus the rate of growth in the productivity of labor and capital. C. the rate of growth of labor plus the rate of depreciation of capital. D. the rate of growth in the productivity of capital.