Question Two (10 Marks) Use your understanding on cost-related definitions to answer the following questions: a) Define marginal product of labor and marginal product of capital. (2 Marks) b) Explain what diminishing marginal product is and why it exists. (3 Marks) c) Draw a diagram to show the general shapes of an average total cost, an average fixed cost, and an average variable cost. (3 Marks) d) Define marginal cost and draw a diagram to show how marginal cost and average total cost look together. (2 Marks)