n the lab, we observed the three step TCP process known as the $3-$way handshake$,$ which sets up a TCP communication session. Which of the following is true about what we observed?

Question $4$ options:

a$)$

In the third part, the Source, which is the client at $192\mathrm{.}168\mathrm{.}50\mathrm{.}10,$ sends an TCP packet with the ACK flag set in its header to the Destination, which is the DMZ server at $192\mathrm{.}168\mathrm{.}1\mathrm{.}20$

b$)$

In the third part, the Source, which is the client at $192\mathrm{.}168\mathrm{.}1\mathrm{.}1,$ sends a TCP packet with the SYN and ACK flags set in its header to the Destination, which is the DMZ at $192\mathrm{.}168\mathrm{.}50\mathrm{.}10$

c$)$

In the second part, the Source, which is the DMZ server at $192\mathrm{.}168\mathrm{.}50\mathrm{.}10,$ sends a TCP packet with the SYN and ACK flags set in its header to the Destination, which is the client at $192\mathrm{.}168\mathrm{.}1\mathrm{.}20$

d$)$

In the first part the Source, which is the client at $192\mathrm{.}168\mathrm{.}1\mathrm{.}20,$ sends a TCP packet with the SYN and ECN flags set in its header to the Destination, which is the DMZ server at $192\mathrm{.}168\mathrm{.}1\mathrm{.}1$