Use this information for Stryker Industries to answer the question that follow. Stryker Industries received an offer from an exporter for 30,000 units of product at $16 per unit. The acceptance of the offer will not affect normal production or domestic sales prices. The following data are available: Domestic unit sales price Unit manufacturing costs: Variable Fixed $21 13 5 What is the differential cost from the acceptance of the offer? Oa. $390,000 Ob. $480,000 Oc. $630,000 Od. $150,000