Four products are made in at the same facility. These products have the following unit product costs: Products A B D $19.90 $15.20 $25.80 $23.20 12.20 8.70 10.50 7.40 Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Unit product cost 1.60 2.10 3.00 2.10 10.80 11.90 8.80 10.70 $44.50 $37.90 $ 48.10 $43.40 Additional data concerning these products are listed below. Products B D Grinding minutes per unit 1.20 0.70 0.60 0.60 Selling price per unit $59.30 $53.70 $59.50 $55.60 Variable selling cost per unit $ 4.60 $ 1.50 $ 2.20 $ 3.60 Monthly demand in units 4,000 2,000 4,000 2,000 Time Left:1:33:31 Rashon Mack: Attempt 1 Variable selling cost per unit $ 4.60 $ 1.50 $ 2.20 $ 3.60 Monthly demand in units 4,000 2,000 4,000 2,000 The grinding machines are potentially the constraint in the production facility. A total of 9,800 minutes are available per month on these machines. Direct labor is a variable cost in this company. How many minutes of grinding machine time would be required to satisfy demand for all four products? 10,800 9,800 10,500 12,000