Multiple Choice Questions The concept of diminishing marginal returns implies that Select one: O a

Multiple Choice Questions The concept of diminishing marginal returns implies that Select one: O a. output increases but at a decreasing rate as the amount of labor is increased and the amount of capital remains fixed O b. output cannot decrease as long as labor is substituted for capital O c. output decreases if either labor or capital is decreased O d. output increases but only if the amounts of both labor and capital increase O e. if the capital stock is kept constant, output cannot increase even if more labor is available