4. Alphabet Custom Products Company produces thrediferent products that all require processing on the same machines. There are only 27,000 machine hours available in each year. Production information for each product is: Product A B Sales price per unit $20.00 $38.00$35.00 Variable costs per $12.00s26.00 $17.00 unit Machine hours necessary to produce 2.5 4.04.50 one unit Required: (1) Determine the preferred sales mix and total contribution margin any of the products. (2) Determine the preferred sales mix and tota for each product (3) Determine the preferre for each product if there are no market constraints on I contribution margin if the demand is limited to 5,000 units d sales mix and total contribution margin if the demand is limited to 3,000 units