on Particulars of four types of products are stated below:- Particulars Selling price per unit Contribution per unit Product A Product B Product C Product D 51.50 57.50 51.25 53.75 11.75 15.00 13.50 12.50 Assume the fixed costs remain the same and there is same demand level for each type of product. For maximising profit, which type of product should be produced? (Note: Contribution is used to cover fixed costs. Therefore, the higher the contribution, the higher the profit for the product.) Select one: O a. Product A O b. Product C O c. Product D O d. Product B