A company currently makes a component used in production. The per unit costs incurred to make the component include: Direct materials: $5; Direct labor: $2; Overhead: $4; Total cost: $11. Twenty-five percent of the overhead costs are considered incremental. The company can purchase the component from another source for $10. The company should do which of the following?

A. The company should buy the components to save $1 per unit.

B. The company can be indifferent because incremental costs are $10 and the purchase price is $10.

C. The company should buy the components to save $2 per unit.

D. The company should make the components because incremental costs are $2 less than the purchase price.