The is a global information system logically linked together by a globally unique address space based on the internet protocol or its subsequent extensions/follow-ons.

Internet

Explanation: The internet is the system used globally which work with the protocols and addresses such as IP protocol and IP addresses. These are interconnected service on a global level for the computer systems. It works on the internet protocol of a TCP/IP architecture.

Internet is used for several purposes for the connection of computers with the help of the routers and servers over the world.

answer: a, c

divide any of the y values by x values and you will always get 3 is the most simple way i can put it for you.