McNeese is determining the staffing level for their credit union located within the university. The beginning of the fall semester is their busiest time, with incoming freshmen and transfer students opening accounts. On average, it takes a teller 10 minutes to successfully open an account. Currently, the average arrival rate has been 6 per hour. Consider now a pooled queue (that is, an M/M/2 queue). What is the system cycle time? (Hint: calculate CT and simply multiply by the conversion factor of 60). Select one: a. 10 minutes b. 5 minutes c. 2 minutes d. 1 minute