Answer :

Final answer:

An Internet service is exemplified by chat, facilitating real-time communication over the Internet.


Explanation:

Internet service: An example of an Internet service is chat. Unlike antivirus, firewall, and router, which are tools or software used for security and network connection, chat is a service that allows individuals to communicate with each other over the Internet in real-time.


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https://brainly.com/question/38404298


B chat is the answer