Concept:A network that covers a very large geographical area is called a Wide Area Network.
Explanation:The Internet connects millions of computers and networks across cities, countries, and continents.
This makes it far larger than a Local Area Network, which covers one building, or a Metropolitan Area Network, which covers a city.
Because the Internet spans the entire globe, it is best classified as a Wide Area Network.
In fact, the Internet is the largest and most common example of a WAN.
Its structure often uses mesh topology to provide multiple paths for data across long distances.
Answer:D. WAN