Personal logs or journal entries posted on the Web are known as :

The correct answer is C. Blogs.

A blog is a website that contains articles, also known as posts, that are usually displayed in reverse chronological order. Blogs are typically written by one person or a small group of people, and they often focus on a particular topic or area of interest.

Listservs are electronic mailing lists that allow people to send and receive messages on a particular topic. Webcasts are live or pre-recorded audio or video presentations that are streamed over the Internet. Subject directories are websites that organize web pages into categories.

Here is a brief explanation of each option:

• A listserv is an electronic mailing list that allows people to send and receive messages on a particular topic. Listservs are typically used to discuss specific topics or to share information with a group of people who share a common interest.
• A webcast is a live or pre-recorded audio or video presentation that is streamed over the Internet. Webcasts are often used to provide training or to share information with a large audience.
• A subject directory is a website that organizes web pages into categories. Subject directories can be used to find information on a particular topic or to browse the web for interesting websites.