Because 'Culture' Becomes So Routine and Automatic Once Internalized

Because 'culture' becomes so routine and automatic once internalized:

A) members of a given culture are ethnocentric (at least initially) .
B) relativism is not really possible.
C) people never judge others' cultures by their own standards.
D) it is easy to forget the cultural practices you grew up with.
E) ethnocentrism is impossible.