But how do you do process of elimination? Like which ones do you get rid of other than the ones you don't know are correct? These are a couple of guessing strategies that are not going to rock your roof, but they're definitely going to get rid of some answers here and there and everywhere. So if we look at one of the questions that I'm going to put up on the wall, and there we have a question up on the wall. And I'm going to read that question to you right now. According to Karl Marx, history is the record of a one granting of more political liberties to all people, the struggle between classes and society, war and conflicts between national leaders and increasing prosperity brought about by industrialization. I'm going to give you two guessing strategies right now, and I want you to apply that to the question.