Question 19 (of 20) 19. What is a wiki? O a website whose content is created and edited by the ongoing collaboration of end users O a web page that serves as a publicly accessible personaljournal and online forum for an individual or org O a business-oriented website that lets users create profiles for professional networking O a unique type of Internet browser where search results are personalized for each user O a website where users create a personal profile, add "friends, and exchange messages and photos with them al and online forum for an individual or organization