Reginald is the controller for Scoot Inc. Scoot makes mobility scooters for senior citizens who have difficulty walking. Scoot has always manufactured the motors for its scooters inhouse; however, the marketing manager of Moto Industries has offered to sell motors to Scoot for $420 each. At the current level of demand of 4,500 units, the cost to produce one motor is as follows: Unit cost Direct materials $130 Direct labour 140 Manufacturing overhead (60% fixed) 290 Total $560 Reginald has approached the company engineers with this proposal. They discussed the option of purchasing the motors from Moto and producing a new scooter called the Turbo X in the manufacturing space previously used to produce the motors. It is estimated that Scoot Inc. could sell 750 Turbo X scooters per year. The estimated costs to produce one unit of Turbo X are as follows: Unit cost Direct materials $1,000 Direct labour $780 Variable manufacturing costs $120 Additional fixed manufacturing costs $320 At what selling price for the Turbo X will Scoot be indifferent between continuing to manufacture the motors in-house and outsourcing the motors and manufacturing the Turbo X? a) $2,076 b) $2,104 c) $2,424 d) $3,120