PLEASE LET ME KNOW WHICH OPTION IS CORRECT, A,B,C,D OR E, THANKS.

A drive-in fast food kiosk is modelled as an M/M/1 queuing system with customer's car arrival rate of 20 per hour. It is desired to have fewer than 4 cars line up 95% of the time. The service rate should be at least per hour 15 per hour So 37 per hour 43 per hour d) e None of the above options. A drive-in fast food kiosk is modelled as an M/M/1 queuing system with customer's car arrival rate of 20 per hour. It is desired to have fewer than 4 cars line up 95% of the time. The service rate should be at least per hour 15 per hour So 37 per hour 43 per hour d) e None of the above options