One item a computer store sells is supplied by a vendor who handles only that item. Demand for that item recently changed, and the store manager must determine when to replenish it. The manager wants a probability of at least 96 percent of not having a stockout during lead time. The manager expects demand to average a dozen units a day and have a standard deviation of two units a day. Lead time is variable, averaging four days with a standard deviation of one day. Assume normality and that seasonality is not a factor. What is theyeorder point to achieve the desired service level? (round to 2 decimal places) Select one: a. 70.14 b. 55.04 c. 70.26 d. 55.00 e. None of the listed Clear my choice