To get this one, give the right answer to the trivia question you get after you finish the game. These questions really are quite trivial, so they're harder than you might think -- but luckily for you, you do have an out. While you're looking at the trivia question, save the game (with a new name), then restore an earlier saved game and go look up the answer. When you know the answer, restore the trivia question game and answer it.