Problem 5 Packet switching queueing delay (10 pts): A packet switch receives a packet and determines the outbound link to which the packet should be forwarded. When the packet arrives, one other packet is 1/3 done being transmitted on this outbound link and 8 other packets are waiting to be transmitted. Packets are transmitted in order of arrival. Suppose all packets are 1,500 bytes and the link rate is 10Mbps. A. (3pts) What is the queuing delay for the packet? B. (3 pts) More generally, what is the queuing delay when all packets have length L, the transmission rate is R,n bits of the currently-being-transmitted packet have been transmitted, and x packets are already in the queue? C. (4 pts) Following question B, suppose X other packets arrive at the same outbound link simultaneously and immediately after that packet. What will be the average queueing delay for the X arriving packets