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Harrington Corporation produces three products, A, B, and C. Pertinent information on these products is as follows: Product Selling Price per Unit Variable Cost per Unit Fixed Cost DL Hours per Unit $ 3.00 per Unit 1 8.00 An (Anchor bolt) $ B (Bearings) S 3.60 C (Castings) $ 8.00 $ $ $ 2.00 2.60 4.00 $ 4.00 2 $1.00 4 There are 160 direct labor hours available. The machine-hour capacity allows 100 anchor bolts, only; 40 bearings, only; 60 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 The same as the labour-hour constraint. 1A+2.50B + 1.67C 100. Indeterminable from the data given. A+B+C 200. 100A + 40B + 60C 20,000.