Draw the production function (with N on the x-axis). Why is it upward sloping? Provide anintuitive explanation.а. b. Define MPN (i.e. Marginal product of labor)? What does it measures? Explain providingintuition. c. Why does the production function become flatter as the input rises? Explain. d. Illustrate the impact of a rise in total factor productivity (i.e. rise in “A")on the production function e. Continue with d. Now draw the MPN curve and illustrate the impact of a rise in "A" on theMPN curve. Why does MPN change? I.e. what is the economic reason for the shift in MPN?Explain providing economic reason (intuition).