Do you feel that feelings of ethnocentricity or xenocentricity are more prevalent in u. s. culture? why do you believe this? what issues or events might inform this?

It's most likely choice a, it makes the most sense in my opinion.

Sorry i don’t know the answer myself

United states v.  nixon, 418  u.s.  683 (1974),  was  a landmark  united states supreme court case  that resulted in a unanimous  decision  against president richard  nixon, ordering him to deliver tape recordings  and  other subpoenaed materials to a  federal  district  court.