An industrial distributor sells water pumps and other related supplies. A particular water pump is purchased for $60 from the manufacturer. The average sales per day are 5 units, and the annual holding cost is 25% of unit cost. The annual demand for the pump is 1500 units, and the order quantity is 300 units. The backorder cost per unit is $50, and the lead time is 20 days. The demand during lead time is given in the table below: What is the reorder point? a) 80 b) 90 c) 100 d) 110 e) 120