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: $21 Domestic unit sales price Unit manufacturing costs: Variable 12 Fixed 4 The amount of profit or loss from acceptance of the offer is a Oa. $630,000 Ob. $480,000 Oc. $360,000 Od. $120,000