In its 1903 decision in the case of Lone Wolf v. Hitchcock, the United States Supreme Court rejected the efforts of three Native American tribes to prevent the opening of tribal lands to non-Indian settlement without tribal consent.  In his study of the Lone Wolf case, Blue Clark properly emphasizes the Court’s assertion of a virtually unlimited unilateral power of Congress (the House of Representatives and the Senate) over Native American affairs.  But he fails to note the decision’s more far-reaching impact:  shortly after Lone Wolf, the federal government totally abandoned negotiation and execution of formal written agreements with Indian tribes as a prerequisite for the implementation of federal Indian policy.(定位）  Many commentators believe that this change had already occurred in 1871 when—following a dispute between the House and the Senate over which chamber should enjoy primacy in Indian affairs—Congress abolished the making of treaties with Native American tribes.  But in reality the federal government continued to negotiate formal tribal agreements past the turn of the century, treating these documents not as treaties with sovereign nations requiring ratification by the Senate but simply as legislation to be passed by both houses of Congress. The Lone Wolf decision ended this era of formal negotiation and finally did away with what had increasingly become the empty formality of obtaining tribal consent.

A.      The Supreme Court took on a greater role in Native American affairs.

B.      Native American tribes lost their legal standing as sovereign nations in their dealings with the federal government, but their ownership of tribal lands was confirmed.

C.      The federal government no longer needed to conclude a formal agreement with a Native American tribe in order to carry out policy decisions that affected the tribe.

D.      The federal government began to appropriate tribal lands for distribution to non-Indian settlers.

E.       Native American tribes were no longer able to challenge congressional actions by appealing to the Supreme Court.  C--A

这题也是很麻烦，明明定位推理的答案是C，为什么标答又是A请高人指点一下！！谢谢

标答是A么……我这个的标答是C耶……

C固然没问题吧，是这个案件判定的后续影响。但我又在想D为什么不对呢，按理说In its 1903 decision in the case of Lone Wolf v. Hitchcock, the United States Supreme Court rejected the efforts of three Native American tribes to prevent the opening of tribal lands to non-Indian settlement without tribal这句话也就说了美国人可以占用原住民土地，那么我觉得D答案应该算得上一个直接影响了

请求高人指点……