Final answer:
Slate is an example of a webzine, which is an online magazine (e-zine) focusing on government, politics, and public affairs, differing from traditional print magazines.
Step-by-step explanation:
An example of a webzine from the given options is D. Slate. Webzines, also known as e-zines, are magazines that are published online. While traditional magazines such as The Saturday Evening Post, TV Guide, and Time have a print origin, webzines like Slate are known primarily for their online presence. Slate, along with other recognized webzines such as Salon and Politico, focuses on government, politics, and public affairs, and is distinguished from newsweeklies that cover a broader range of political and social issues.