Traditionally, America was considered a heterogeneous collection of:
individuals with few common values.
melting pot with values derived more or less equally from all the various immigrant groups.
collection of distinct groups with some shared values and many unique ones.
melting pot with Western European values.
None of these choices are correct.

melting pot with Western European values.

Explanation:

In spite of the fact that American society has more than often be known to consist of varying large amount of subcultures, until lately when a lot of marketers as dealt with it in a certain way as a homogeneous culture established for the most part of Western European values.

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