Answer:
A) Transmission of letter, message and memos over a communication network
Explanation:
Communication can be defined as a process which typically involves the transfer of information from one person (sender) to another (recipient), through the use of semiotics, symbols and signs that are mutually understood by both parties. One of the most widely used communication channel or medium is e-mail (electronic mail).
An e-mail is an acronym for electronic mail and it is a software application or program designed to let users send texts and multimedia messages over the internet.
Hence, electronic mail is a transmission of letter, message and memos over a communication network. Some examples of the commonly used electronic mails platform are Yahoo, G-mail, etc.
