Answer:
Compatibility.
Explanation:
Email or electronic mail is a messaging system that allows for transmission of digital or electronic mails to computers within and to other networks through the internet.
Email applications are web based applications and are hosted on servers. The POP (post office protocol) and IMAP (internet messaging access protocol) are used to message the mails sent to a client on a server. The application is written with standards and protocols to ensure compatibility in all types of device form factor, so an email can be view in a laptops, smartphones etc.
True rookies are only made by black hat hackers I am not sure I hope this will help
Im pretty sure the answer is b.
Answer: tracking and manipulating data.
Explanation: A spreadsheet is nothing more than a large ledger like the ones accountants and office workers used years ago. It was a ruled paper that data and information was entered on in order to keep track of money, inventory, and other information. Adding or subtracting from one column would change the totals and values overall. Now, with computers we have the electronic version and store the data on disc, flash drive or other connected media.