How do TCP and UDP differ in the way that they establish a connection between two endpoints ？
A . TCP use the three-way handshake, and UDP dose no guarantee message delivery
B . TCP use synchronization packets, and UDP uses acknowledgement packets
C . UDP provides reliable message transfer, and TCP is a connectionless protocol.
D . UDP use SYN, SYN ACK, and FIN bits in the frame header while TCP uses SYN, SYN ACK, and ACK bis.
Answer: A