processed in the two departments. and U. each of which requires two processes, polishing and grinding. The contribution margin is $2 for product A and $8 for product 8. The illustration shows the maximum number of units of each product that may be 40 Polishing Cobra 30krotriaku) 301 30 Grinding constraint (restriction) 0 10 20 30 40 Units of product A Considering the constraints (restrictions) on processing, which combination of products A and Baximizes the total contribution margin? 20 units of A and 10 units of 8. 30 of A0B.