<span>ideas that developed in one aspect of life will affect other aspects of life
I think that is the answer you are looking for.
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The correct answer of the given question above about ancient China and India would be option C. The geography shaped the civilizations in India and China since by emerging where mountains and other natural barriers offered protection. Hope this is the answer that you are looking for.
The caste system was the dominant social system of "India," since it had pre-modern roots in this area and helped build a system of social stratification, which was altered by British rule.