5) Suppose that nodes A, B, and C are on the same 5 Mbps Ethernet broadcast channel and CSMA/CD is used. Suppose that, so far, node C has made 3 attempts to transmit but fails each time. What is the probability that node C chooses K=5, after the first, second, and third collision respectively? (6 marks) 5) Suppose that nodes A, B, and C are on the same 5 Mbps Ethernet broadcast channel and CSMA/CD is used. Suppose that, so far, node C has made 3 attempts to transmit but fails each time. What is the probability that node C chooses K=5, after the first, second, and third collision respectively? (6 marks)