Brett, located in Port St. Lucie, Florida, produces two lines of electric toothbrushes: deluxe and standard. Because Brett 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: EEE (Click the icon to view the data.) After expansion, the factory will have a production capacity of 4,200 machine hours per month. The plant can manufacture either 60 standard electric toothbrushes or 30 deluxe electric toothbrushes per machine hour Read the requirements Data Table Requirement 1. Identify the constraining factor for Brett. Brett's constraint is machine hours Per Unit Requirement 2. Prepare a product mix analysis to show which product line to emphasize. Deluxe Standard Toothbrush Toothbrush Deluxe Standard Sales price 84 S 50 Toothbrushes Toothbrushes 21 18 Toothbrushes produced each hour Variable costs 63 S 32 Contribution margin per toothbrush Contribution margin Contribution margin ratio 75.0% 64.0% machine hour Contribution margin per X Requirements Choose from any list or enter any number in the input fields and then click Check A 1. Identify the constraining factor for Brett