Answer:
D: HTTP
Explanation:
When we talk about the email address and the different parts, we can mention for example:
Firstly the username, always an email address starts with a username, next we must use the symbol @, for example:
peter @
michael @
we can add numbers or some characters
henry_98 @
The last part is the domain name, this is the email's company.
Paying it in full month over month.
Explanation: The CPU is the main control chip which calculates what has to be done in order for your computer to function.
(Very interesting question you had. Hope this answer helps)