a-2. How much operating profit could the company earn if it were able to satisfy the annual demand? b-1. Compute the contribution margin for each shirt per the constrained resource, direct labor. (Do not round intermediate calculations. Round your final answers to 3 decimal places.) Basic Classic Formal Contribution margin S 42,858.000 b-2. Which of the three product lines makes the most profitable use of the constrained resource, direct labor? Classic Basic Formal c. Given the information in the problem so far, what product mix do you recommend? Classic and Basic Basic and Forma Classic and Formal