9 Given QM output on a product-mix problem as below: Objective: Maximize Results ---------- X1 X2 RHS Dual --------------------------------------------------------------------------------- Maximize 40 50 Material A 1 2 <= 40 16 Material B 4 3 <= 120 6 Material C 2 7 <= 300 0 --------------------------------------------------------------------------------- Solution 24 8 1,360 If one more unit of Material A or Material B (not both) can be obtained, then which should be selected to increase? Material A. Material B