I am the most useful protocol for the Internet. You see me in all the web addresses. Who am I?

Correct option is C

The correct answer is (c) HTTP
Explanation:
● HTTP (Hypertext Transfer Protocol) is the foundation of data communication for the World Wide Web.
● It is the protocol used by web browsers and servers to communicate, which is why it appears at the beginning of almost every web address.
Information Booster:
● SMTP: Simple Mail Transfer Protocol, used for sending emails.
● TCP/IP: The basic communication language or protocol of the internet.
● FTP: File Transfer Protocol, used for transferring files between a client and a server on a computer network.
Additional Knowledge:
● HTTPS is the secure version of HTTP, where data is encrypted using SSL/TLS.