plz ans Q11

Question 11 Not yet answered Marked out of 2.00 (A) Consider there is only one cash counter at Mazoon electricity office where the customers are formed in two queues (for males and females) for making payments in respect of their electricity bills. This type of Waiting line structure is called: Flag question Multi-Channel Single Phase Single Channel Single Phase Single Channel Multi Phase (B) WH Multi-Channel Multi Phase Jitable for LIFO Service Discipline? (6) Which one of the example is best suitable for LIFO Service Discipline? Cinema Ticket Window Warehouse Appointment with Doctors Flight Ticket Reservation Counter