Rusty Co. sells two products, X and Y. Last year Rusty sold 5,000 units of Xs and 35,000 units of Ys. Related data are: Unit Selling Price Unit Variable Unit contribution Product Price Cost Margin X $110.00 $70.00 $40.00 Y 70.00 50.00 $20.00 What was Rusty Co.s weighted average unit variable cost? A. $50.00 B. $70.00 C. $52.50 D. $120.00