Question 5 (1 point) A firm produces two products: A and B with demand of 100 units each. The firm faces a single resource constraint - machine hours. Each unit of A provides a contribution margin of $10 and each unit of B provides a contribution margin of $8. The optimal production plan is to produce 100 units of A and 50 units of B. If the firm can re-optimize its production plan, the effect on the firm's total contribution if demand for B increases to 120 and machine hours remain unchanged is zero. True False