5. Assembling has been identified as the bottleneck in bicycle production. Six employees are available eight hours a day and five days a week in the assembling department. Selling price per unit is 500, direct material cost per unit is 180 and direct labour cost per unit is 80. It takes 1hr 30 minutes to assemble each bicycle and the company plans to make 2,000 bicycles every month. What is the throughput return per factory hour? a. 320 b. 213.33 c. 1,740 d. 240