I am lost

Bruce Corporation makes four products In a single facility. These products have the following unit product costs: Products $13.60 $ 9.50 $10.30 $ 9.90 Direct materials Direct labor 32.90 18.70 26.70 39.70 Variable manufacturing overhead Fixed manufacturing overhead Unit product cost 2.00 3.60 1.90 2.50 25.80 34.10 25.90 36.50 $61.70 $72.30 $71.00 $88.60 Additional data concerning these products are listed below. Products B Grinding minutes per unit Selling price per unit Variable selling cost per unit Monthly demand in units 4.20 3.10 3.60 2.70 $75.40 $92.80 $86.70 $103.50 $ 1.50 $ 0.50 $ 2.60 $ 0.90 3,300 3,300 2,300 2,500 The grinding machines are potentlally the constralnt in the production facility. A total of 53,000 minutes are avallable per month on these machines. Direct labor Is a varlable cost in this company. How many minutes of grinding machine time would be requlred to satisfy demand for all four products? Multiple Cholce 28,890 39,120 53,000 8,380