Coroid Manufacturers Inc. is approached by a European customer to fulfill a one- time-only special order for a product similar to one offered to domestic customers. The company has excess capacity. The following per unit data apply for sales to regular customers: Variable costs: Direct materials $120 Direct labor 60 Manufacturing support 105 Marketing costs 45 Fixed costs: Manufacturing support 135 Marketing costs 45 Total costs 510 Markup (50%) 255 Targeted selling price $765 What is the full cost of the product per unit? Select one: a. $510 O b. $765 c. $330 O d. $255