Answer:
hard copy attachments
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 around the world is an 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 and receive texts and multimedia messages over the internet.
The following documents or files such as soft copy attachments, web links and web pages may be sent from one user to another through the use of an email.
However, hard copy attachments cannot be sent via email because they're physical documents and as such requires that they be delivered physically to the recipient.
In conclusion, you can only send soft copy documents that you cannot feel or touch with your hands over the internet and via email. Thus, an email is only designed to accept soft copy documents or files (attachments) but certainly not hard copy documents (attachments) in our technological era.