The correct answer is option 4 i.e.,a world wide interconnected network of computers which use a common protocol to communicate with one another
Internet is a worldwide interconnected network of computers that use a common protocol to communicate with one another.
It uses the internet protocol suite (TCP/IP) to communicate between devices and networks.
It is also referred to as a "network of networks" . It emerged in the US in the 1970s but did not become visible to general public until the early 1990s.
It supports human communication via social media, electronic mail, chatrooms, and audio and video transmission and allows people to work collaboratively at many different locations.
The first operational packet switching network and the predecessor of the Internet were ARPANET.
ARPANET stands for Advanced Research Projects Agency Network.