Assume that the timeout values for GBN, SR, and TCP protocols are sufficiently long such that 7 consecutive data segments can be received (if not lost in the channel) by the receiving host (Host B) and their corresponding ACKs can received by the sending host (Host A). Suppose Host A sends 7 data segments to Host B, and the 4th segment (sent from A) is lost. In the end, all 7 data segments have been correctly received by Host B. For GBN, SR, and TCP (no delayed ACK) protocols how many segments has Host A sent in total and how many ACKs has Host B sent in total? What are their sequence numbers? (15 Points)