Correct option is D
The statement "Internet is commonly used service on the World Wide Web" is false. The Internet is not a service, but rather a vast network of interconnected computers that allows for communication and data transfer. The World Wide Web, on the other hand, is a service that utilizes the Internet infrastructure to provide access to information resources.
The statement "HTTP is the protocol that web browsers and web servers use to communicate with each other over the Internet" is true. HTTP stands for Hypertext Transfer Protocol, and it is the foundation protocol for data communication for the World Wide Web. Web browsers use HTTP to send requests to web servers, and web servers use HTTP to send responses back to web browsers.
Therefore, Statement I is false, but Statement II is true.