In a bank's cashier counter, customers arrive at the rate of 20 per hour. There are two cashiers and it takes on average 6 minutes for a cashier to serve a customer. Both customer arrival and service times are variable (you can assume CVa=CVp=1 if needed). Which of the following is correct about this process? Group of answer choices This is a stable process since capacity is more than demand This is an unstable process since utilization = 1 This is a stable process since capacity is equal to demand This is an unstable process since demand/capacity fluctuate