Which one of the following situations most clearly illustrates the phenomenon of intertribalism, as that phenomenon is described in the passage? A. a native American tribe in which a number of powerful societies attempt to prevent the revival of a traditional dance B. a native American tribe whose members attempt to learn the native languages of several other tribes C. a native American tribe whose members attempt to form a political organization in order to redress several grievances important to that tribe D. a native American tribe in which a significant percentage of the members have forsake their tribal identity and become assimilated into Euroamerican society E. a native American tribe whose members often travel to other parts of the reservation in order to visit friends and relatives