Answer:
A. Its diverse population.
Explanation:
The definition of heterogeneous is composed of parts of different kinds; having widely dissimilar elements or constituents.
The United States population has many different ancestors from many different countries. The culture was influenced primarily by the European culture but also received influence from African, Asian, Latin American, and Native American people and their cultures.
These influences were the result of large-scale migration from many countries throughout the years.
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