answer please 14 ?

Ahmad Manufacturing uses 1000 units of a product per year on a continuous basis. The product carrying costs are $75 per year and ordering costs are $50 per order. It takes 20 days to receive a shipment after an order is placed and the firm requires a safety stock of 8 days of usage in inventory. Calculate the economic order quantity (round up to the nearest whole unit.) Select one: O a. 37 units O b. 45 units O c.40 units O d. 35 units