According to the passage, one reason why the United States Supreme Court "has not always resolved legal issues of concern to Native Americans in a manner that has pleased the Indian nations" is that A. Native Americans have been prevented from presenting their concerns persuasively B. the Court has failed to recognize that the Indian nations' concerns are different from those of other groups or from those of the federal government C. the Court has been reluctant to curtail the powers of the federal government D. Native Americans faced distinct disadvantages in dealing with settlers in the past E. the Court has made political compromises in deciding some cases