Q. In which year was Facebook launched?

The correct answer is: (D) 2004

Explanation:
Facebook was launched on February 4, 2004, by Mark Zuckerberg along with his college roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes. Initially, it was created as a social networking platform for Harvard University students but later expanded to other universities and eventually to the general public.