Question 24: (5 points) Assume two machines are in a TCP connection. Assume the sizes of all packets sent from the sender are equal. The size of TCP send buffer at the sender is 5 packets. We start from packet number 1, so that the window will be slots {1, 2, 3, 4, 5}. Assume the sender sends 5 packets with numbers {1, 2, 3, 4, 5}. All 5 packets reach the receiver. The receiver acknowledges the packets. The ACK for packet number 2 is lost in the network. All other ACKs reach the sender. How does the sender change its TCP send buffer