CRA Fast Food has four activities in serving a customer greet customer take order process order and deliver order. Each activity is staffed by one employee or a total of fout employees The processing time for each activity is given as follows Activity Greet customer Take order Process order Deliver order Processing time per customer 2 seconds 30 seconds 60 seconds 5 seconds Assume demand is unlimited. Eachy employee is paid $7.50 per hour one additional employees added to the bottleneck othey wiat will be the cost of drect laborins per customer? MUN ORO 910 02 Multiple Choice O 0.50 O 0.3125 O 0.25 (0) 0.125