Bruce Corporation makes four products in a single facility. These products have the following unit product costs Additional data concerning these products are listed below. The grinding machines are potertially the constraint in the production facility. A totai of 54.800 minutes are avallable 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 producta? Multiple Choice 54800 71.620 97.620 28,200