Question 21 4 pts Sophia's Sunglasses Shoppe sells 8,320 sunglasses per year. The standard deviation of daily demand is 8 units. The average lead time is 12 days with a standard deviation of 3 days. The estimated cost to process orders is $50 and the carrying rate is 30%. The store operates 260 days per year. The service level is 95%. What is the safety stock (SS)? (round to the nearest whole number) 384 164 713 548