whAt is thE mAin topiC oF thE ConvErsAtion
A．thE DAnCEs oF A nAtivE AmEriCAn DAnCE troupE.
B．how nAtivE AmEriCAn CErEmoniAl DAnCEs ArE ClAssiFiED.
C．vAriAtions oF A BAsiC DAnCE Among nAtivE AmEriCAn triBE.
D．how nAtivE AmEriCAn Artists ArE trAinED.