Q.3. Customers arrive at an order counter with exponential interarrivals with a mean of 10 minutes; the first customer arrives at time 0. A single clerk accepts and checks their orders and processes payments, taking UNIF(7.9, 10) minutes. Upon completion of this person has a 50% chance of getting any individual assignment) who retrieve the orders for the customers, taking UNIF(16, 20) minutes. These stock persons only retrieve orders for customers who have been assigned specifically to them. Upon receiving their orders, the customers depart the system. a) Develop a model of this system using Arena and draw the model in your paper using software syntax. Explain the functions of each flow chart module you used in your model. (20-Mark) A bright, young engineer has recommended that they eliminate the assignment of an order to a specific stock person and allow both stock persons to select their next activity from a single first-come, first-served order queue. b) Develop a model of this system using Arena and draw the model in your paper using software syntax. Explain the functions of each flow chart module you used in your model. (20-Mark)