Which Statement About Social Class Isincorrect

Which statement about social class isincorrect?

A) While visiting most cultures,U.S.persons are forced into the lower class of the culture and feel ill at ease in this role.
B) Many U.S.citizens prefer to believe that no social class exists in the United States.
C) The obvious existence of social class in other societies makes most U.S.Americans quite uncomfortable.
D) In many cultures,distinctions are made between acceptable and unacceptable friends.