Brown Corporation makes four products in a single facility. These products have the following unit product costs: Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Unit product cost A $17.00 1900 5.80 28.90 $70.70 Products B $20.90 $13.90 22.40 16.80 7.00 9.50 15 80 15.90 $66.10 $56.10 D $16.60 10.80 6.50 1790 $5180 Additional data concerning these products are listed below Grinding minutes per unit Selling price per unit Variable selling cost per unit Monthly demand in units A 2.15 $85.70 $2.75 4.400 Products B D 120 0.75 105 $78.10 $74 90 $69.60 $3.45 $4.20 $4.90 3.400 3.400 5.40000 The grinding machines are potentially the constraint in the production facility. A total of 10.500 minutes are available per month on these machines Direct labor is a variable cost in this company Which product makes the MOST profitable use of the grinding machines? Product A Product B Product D Product C