As shown in the figure, there are three data packets captured by the administrator on the network.
Which of the following statements is incorrect?
A . None of these three data packets contain application layer data
B . These three data packets represent the three-way handshake process of TCP
C . The telnet client uses port 50190 to establish a connection with the server
D . The IP address of the telnet server is 10.0.12.1, and the IP address of the telnet client is 10.0.12.2