Jacoby Company received an offer from an exporter for 30,000 units of product at $15 per unit. The acceptance of the offer will not affect normal production or domestic sales prices. The following data 2. are available: Domes ic unit sales price $21 Unit manufacturing costs: Variable Fixed The differential revenue from th acceptance of the offer is a.$120,000 b.$510,000 c.$630,000 d.$450,000 (Ctrl)