Harrington Corporation produces three products, A, B, and C. Pertinent information on these products is as follows: Fixed Cost DL Hours per Unit per Unit Selling Price perVariable Cost per Unit Unit $4.00 $1.00 $3.50 $0.50 $6.00 $2.00 Product A (Anchor bolts) B (Bearings) C (Castings) 2 $2.00 $2.00 $3.00 2 3 There are 150 direct labor hours available. Machine-hour capacity allows 100 anchor bolts, only; 50 bearings, only; 40 casters, only; or any combination of the three that does not exceed the capacity. The machine-hour constraint for Harrington's linear programming model is: Multiple Choice A+B+C