Answer is C because:
Parallelism - "anthropologists realize that...and that..."
Among vs. Between - Use among if people or things can be regarded collectively (that is, as a group or undifferentiated mass) rather than individually.
Parallelism - "anthropologists realize that...and that..."
Among vs. Between - Use among if people or things can be regarded collectively (that is, as a group or undifferentiated mass) rather than individually.



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