Brill, located in Port St. Lucie, Florida, produces two lines of electric toothbrushes: deluxe and standard. Because Brill can sell all the toothbrushes it can produce, the owners are expanding the plant. They are deciding which product line to emphasize. To make this decision, they assemble the following data: (Click the icon to view the data.) After expansion, the factory will have a production capacity of 4,800 machine hours per month. The plant can manufacture either 62 standard electric toothbrushes or 28 deluxe electric toothbrushes per machine hour. Read the requirements. Requirement 1. Identify the constraining factor for Brill. Brill's constraint is