Answer: star
Explanation: A star network topology is an implementation of a spoke–hub distribution paradigm in computer networks. In a star network, every host is connected to a central hub. In its simplest form, one central hub acts as a conduit to transmit messages. The star network is one of the most common computer network topologies.
C. It's honestly up to the user, upload so others can use it or make it so its copyrighted and make some cash :P
I have a feeling you're looking for Microsoft Outlook.
Ffkjlfdhaslkjfhlaksdfhlkajsdfh