Which protocol is typically used for the transmission of data over the internet?

The correct answer is that all the listed protocols are typically used for the transmission of data over the internet.

TCP, or Transmission Control Protocol, is fundamental as it establishes a connection between devices and ensures reliable data transmission. It breaks down data into packets and ensures that these packets are delivered accurately and in the correct sequence.

HTTP, or Hypertext Transfer Protocol, is specifically used for transmitting web pages. It operates on top of TCP and defines how messages are formatted and transmitted, as well as how web servers and browsers should respond to various commands.

FTP, or File Transfer Protocol, is utilized for transferring files between client and server over a network. It also operates over TCP, providing a reliable connection for file transfers.

Since all three protocols serve specific purposes within the broader context of internet data transmission, they collectively represent the various ways data can be transmitted across the internet. Thus, it's accurate to state that all of the mentioned protocols are integral to data transmission online.