Consider a single-server queueing system with a Poisson arrival process and exponentially distributed service times. The interarrival times have a mean value of 20 mins and the mean service time is 25 mins. Choose the correct 

(a) The server will be always busy after the first customer arrives 

(b) The queue will grow and explode 

(c) If a second server with the same service time distribution is added to the service facility, the system can reach a steady-state condition