The correct answer is B. David Filo and Jerry Yang developed Yahoo! in 1994. They were graduate students at Stanford University when they created a website called “Jerry and David’s Guide to the World Wide Web” to organize their favorite websites. The website quickly became popular, and in 1995, Filo and Yang founded Yahoo! Inc., which became one of the most popular websites in the world.
Option A is incorrect. Dennis Ritchie and Ken Thompson developed the Unix operating system, which is the foundation for many modern operating systems, including Linux and macOS.
Option C is incorrect. Vint Cerf and Robert Kahn developed the Transmission Control Protocol (TCP) and Internet Protocol (IP), which are the foundation for the Internet.
Option D is incorrect. Steve Case and Jeff Bezos founded America Online (AOL) and Amazon, respectively.