What type of information does a URI contain?

A Uniform Resource Identifier (URI) serves a crucial role in identifying resources on the internet. The primary function of a URI is to provide a way to uniquely identify a resource, which can be anything from a webpage to a file or an image. This identification allows users and programs to locate and access the resource easily over the internet.

The importance of a URI lies in its ability to specify how a resource can be identified and accessed. It provides the necessary syntax to define and distinguish various types of resources, whether they are located on the web or elsewhere. Thus, the correct answer focuses on how URIs function as identifiers for web resources, making this choice inherently accurate.

Other options do not correctly describe the role of a URI. For instance, while physical addresses may relate to organizations, they do not pertain to the digital identification capabilities of a URI. Access credentials refer to permissions or logins for networks, which are entirely separate from how resources are identified. Lastly, descriptions of website content might give context about what a resource contains, but that function is not part of a URI's purpose; a URI specifically identifies rather than describes.