Jacoby Company received an offer from an exporter for 27,700 units of product at $19 per unit. The acceptance of the offer will not affect normal production or domestic sales prices. The following data are available: $25 Domestic unit sales price Unit manufacturing costs: Variable 9 Fixed 5 The differential revenue from the acceptance of the offer is Oa. $692,500 Ob. $166,200 Oc. $1.218,800 Od. $526,300