What is the port number of the HTTP?

HTTP (Hypertext Transfer Protocol) is the foundation of data communication on the World Wide Web. It defines how messages are formatted and transmitted, and what actions web servers and browsers should take in response to various commands.
The default port number for HTTP is 80. This port is reserved for unencrypted web traffic and is used by web servers to listen for incoming HTTP requests from clients (e.g., web browsers).
Other ports listed in the options are used for different protocols:
Port 25: Used for SMTP (Simple Mail Transfer Protocol) for sending emails.
Ports 20 and 21: Used for FTP (File Transfer Protocol) for file transfers.
Port 23: Used for Telnet, a protocol for remote terminal access.
Therefore, the correct port number for HTTP is 80.