Anyone who believes in extraterrestrials believes in UFOs. But the existence of UFOs has been conclusively refuted. Ttherefore a belief in extraterrestrials is false as well. Which one of the following arguments contains flawed reasoning most similar to that in the argument above? ['Anyone who believes in unicorns believes in centaurs. But it has been conclusively proven that there is no such thing as a unicorn, so a belief in centaurs is mistaken as well.', 'Anyone who believes in unicorns believes in centaurs. But it has been demonstrated that there are no centaurs, so there are no unicorns either.', 'Anyone who believes in unicorns believes in centaurs. But you do not believe in centaurs, so you do not believe in unicorns either.', 'Anyone who believes in unicorns believes in centaurs. But you do not believe in unicorns, so you do not believe in centaurs either.']