Which out of these would you say is the best way to punctuate the following?<br/><br/>"Keep those two students as far away from each other as possible because if you don't, mayhem always ensues."<br/><br/>"Keep those two students as far away from each other as possible, because if you don't, mayhem always ensues."<br/><br/>"Keep those two students as far away from each other as possible. Because if you don't, mayhem always ensues."<br/><br/>Nothing, comma, or full stop?