Confidentiality means that nobody else can see the data along the way.
One of the option's of Q.no 3 is
Confidentiality can be defined as information is not made available or disclosed to unauthorized persons or processes
I think it indirectly says, information is made available or disclosed to authorized persons or processes. During data transmission i.e from client to server or server to client, I am not getting, who is authorized persons or processes they can see data/information? Can you please explain? Thankyou.