Springer Products manufactures three different product lines, Model X, Model Y, and Model Z. Considerable market demand exists for all models. The following per unit data apply: Model Y Model X $51 6 $64 Model Z $75 6 6 Selling price Direct materials Direct labor ($16 per hour) Variable support costs ($6 per machine - hour) Fixed support costs 16 16 32 6 12 12 10 10 10 If there is excess capacity, which model is the most profitable to produce? A. Model X B. Model Y C. Model Z D. Both Model X and Model Y have same and highest profitability