Which of the following is often referred to as 'the CB of the internet'?

Internet Relay Chat is often called the CB of the internet because it allows open, real-time group text conversation on channels.

FTP transfers files between computers and is not a live chat medium.

Email exchanges stored messages rather than offering CB-style live conversation.

HTTP delivers web pages and is unrelated to citizens-band style chatting.

IRC users join named channels much like tuning to a CB radio band.

IRC was created by Jarkko Oikarinen in 1988.