You are at a company meeting, where there is a discussion on a product- specifically "what if" analysis and the impact of change in certain variables. Management is considering some changes to the product. Currently, this product has the following information: Unit sales Selling price per unit Variable cost per unit Total fixed cost 6,000 units $35 $20 $25,000 Management wants to know what the impact on operating income will be if contribution margin increases by 10% and fixed costs decrease by 20% and all other variables stay the same. Select one: O a. Decrease by $12,000 O b. No change. OC. Increase by $11,000. Od. Increase by $12,000 e. Decrease by $11,000