What is the most common tool used to restrict access to a computer system?A. User loginsB. PasswordsC. Computer keysD. Access-control software 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Website Label {} [+] Name* Email* Website 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments