Suppose the marginal product of labor is 0.5q/L and the marginal product of capital 0.5q/K is where q is the quantity produced using L units of labor and K units of K 9 capital. In the long run, the firm will hire equal amounts of capital and labor a. when the wage equals the rental rate for capital. b. when the wage is half of the rental rate for capital. c. all the time.
d. at no point.