Use this information for Stryker Industries to answer the question that follow. Stryker Industries received an offer from an exporter for 27,000 units of product at $17 per unit. The acceptance of the offer will not affect normal production or domestic sales prices. The following data are available: $24 Domestic unit sales price Unit manufacturing costs: Variable 14 Fixed 6 What is the differential cost from the acceptance of the offer? a. $648,000 b. $459,000 c. $378,000 d. $162,000