1Mediumgeneral⏱ 45sWhat happens during the TCP three-way handshake?📎▼AOnly one packet is exchanged to establish a connectionBThe client sends SYN, the server responds with SYN-ACK, and the client responds with ACK, establishing a reliable connection before data transfer beginsCThe handshake is used only for closing connections, not opening themDIt requires exchanging encryption keys as part of TCP itself