Carter Co. sells two products: Arks and Bins. Last year, Carter sales mix was 20% Arks and 80% Bins. Related data are as follows: Unit Selling Price Unit Variable Cost Unit Contribution Margin Product Arks S120 $80 S40 Bins 80 60 20 Assuming that last year's fixed costs totaled $960,000, Carter Co.'s break-even point in units was 40,000 units 12,000 units 35,000 units 28,000 units