Multiple choice general knowledge Samuel Langhorne Clemens Clement Attlee Arthur Conan Doyle Mark Twain Charles Dickens Reveal answer Fill a bubble to check yourself C Correct answer Explanation Samuel Langhorne Clemens was the real name of Mark Twain, the famous American author of Adventures of Huckleberry Finn and Tom Sawyer. Clement Attlee, Arthur Conan Doyle, and Charles Dickens are different figures.