Interpretative questions are those that has one or more answers that should be supported by evidences from the text. Out of the questions presented in the choices, only the second one, "Why did Marcus have such a hard time in school?" could be reasonably supported. Thus, the answer is the second choice.
<h2><em>Because the author wants you to think about what you think she should have done, what you think she did, and what you would have done if you were the princess. Most stories end by telling you what happens to the main characters. This story leaves it open for the reader to decide</em></h2>