What distinguishes the World Wide Web from the internet?

The distinction between the World Wide Web and the internet revolves around their definitions and functionalities. The World Wide Web is indeed a subset of the internet, specifically the part that utilizes the Hypertext Transfer Protocol (HTTP) for communication. This means that the web encompasses all the websites, web applications, and online services that people access using web browsers.

While the internet is a vast, global network of interconnected computers that communicate using various protocols, the World Wide Web focuses solely on those resources that are available through web browsers via HTTP. Other forms of communication, like email or file transfer, utilize different protocols and tools that are part of the broader internet ecosystem but don't constitute the web itself.

In contrast to the other options, the speed of access, the mode of communication (which is not limited to email), and accessibility across various devices do not accurately define what separates the World Wide Web from the internet. Thus, understanding the role of HTTP as the communication protocol that defines the web helps clarify its place within the larger framework of internet technologies.