America Online (AOL) started out as which of these online service providers?

The answer is Quantum Link because AOL, which stands for America Online, began its journey as Quantum Link, an online service provider, before rebranding itself as AOL. Quantum Link was launched in 1985 by Quantum Computer Services, offering a range of features such as email, chat rooms, multiplayer games, and news. As the company expanded its services and user base, it eventually changed its name to AOL in 1989, becoming one of the most popular online service providers in the United States during the 1990s.