Which of the following is not true about User Datagram Protocol in transport layer?

• A. Works well in unidirectional communication, suitable for broadcast information
• B. It does three way handshake before sending datagrams
• C. It provides datagrams, suitable for modeling other protocols such as in IP tunneling or Remote Procedure Call and the Network File System
• D. The lack of retransmission delays makes it suitable for real-time applications