Which statement accurately describes URI in terms of web addresses?

The statement that URI is a broader term encompassing URLs and URNs is accurate because a Uniform Resource Identifier (URI) serves as a generic term that includes both Uniform Resource Locator (URL) and Uniform Resource Name (URN).

A URL is a specific type of URI that provides the means to access a resource on the internet, typically through a specific protocol (like HTTP or FTP) and includes the location of the resource. A URN, on the other hand, identifies a resource by name in a given namespace but does not provide a means of locating that resource over the internet.

Thus, the definition reinforces that while all URLs and URNs are types of URIs, URIs themselves encompass a broader scope of identifiers that can be used to specify a resource, regardless of whether it can be directly accessed or just identified. This makes the statement the most comprehensive and accurate description regarding how URI relates to web addresses.