Final answer:
POP3 and SMTP are the protocols related to receiving email. POP3 is used to retrieve emails from a server, and SMTP is used for sending but also plays a role in the email receiving process. TFTP, NNTP, and IRC are not related to email reception.
Step-by-step explanation:
When selecting all protocols that are related to receiving email, we can conclude that:
- B. POP3 (Post Office Protocol 3) is used for retrieving emails from a remote server to a local email client.
- E. SMTP (Simple Mail Transfer Protocol) is primarily used for sending messages, but it's involved in receiving emails as well because it works closely with POP3 and IMAP to deliver messages to the recipient's email server.
Other listed protocols such as TFTPB, NNTP, and IRC are not directly related to receiving email:
- A. TFTP (Trivial File Transfer Protocol) is used for simple, unsecured file transfers.
- C. NNTP (Network News Transfer Protocol) is used for Usenet forums or news groups.
- D. IRC (Internet Relay Chat) is used for real-time messaging and has no email functionality.