..... is one of the first social networking sitesAwhatsappBfacebookCsixdegrees.comDOrkutAnswer: C. sixdegrees.comRead Explanation:Six Degrees.com is a social networking website that was launched in 1997 and existed until 2000. This website was the model for many social media platforms that are popular today.Key features:The ability to connect with friends and acquaintances.The ability to create your own profiles.The ability to send messages to others. Open explanation in App