Rowan Quinn Company manufactures kitchen appliances. Currently, it is manufacturing one of its components at a variable cost of $40 and fixed costs of $15 per unit. An outside provider of this component has offered to sell Rowan Quinn the component for $45. Determine the best plan and calculate the savings. A. $5 savings per unit if manufactured B. $5 savings per unit is purchased C. $15 savings per unit if purchased D. $10 savings per unit if manufactured