Bruce Corporation makes four products in a single facillty. These products have the following unit product costs: Additional data concerning these products are listed below. The grinding machines are potentlally the constraint In the production facility. A total of 52,400 minutes are avalable per month on these machines. Direct labor is a varlable cost in this company. How many minutes of grinding machine time would be required to satisfy demand for all four products? Multiple Choice 17,190 52,400 23,940 5,200