8. Carruthers Company wants to double production of Product Z from 500 units to 1,000 units. The variable manufacturing cost per unit is $5. The variable nonmanufacturing cost per unit is $12.50. There are no fixed costs The selling price per unit is $25. What is the incremental cost of the proposed change? A) $2,500 B) $6,250 C) $8,750 D) $17,500