P0P3 (Post Office Protocol 3) is a standard protocol for receiving email that deletes mail on the
server as soon as the user downloads it. When a message arrives, the POP3 server appends it to
the bottom of the recipient’s account file, which can be retrieved by the email client at any
preferred time. Email client connects to the POP3 server at _______________by default to fetch
emails.

A.
Port 109

B.
Port 110

C.
Port 115

D.
Port 123

Explanation: