I agree with everyone else who said the only safe way to do it is with an ORDER BY clause.
As for unsafe methods, whichreally ought not to be used (or ought only to be used to speed up the execution of the order by clause) there are 4; so assuming we choose the safe method as one of our 4 answers, we are left to guess which three of the unsafe methods we should use.
All in all a thoroughly unsatisfactory question. But the author shouldn't worry too much; others (including me) write bad questions. Steve (Jones) is pretty good at rapidly applying corrections that the question's author sends him.