Iwill mark brainlest
read the passage below and answer the question.

"when they divided purusha, how many portions did they make? what did they call his mouth, his arms? what do they call his thighs and feet? the brahman was his mouth, of both his arms was the rajanya made. his thighs became the vaisya. from his feet the sudra was produced."

excerpt from rigveda, book 10, hymn 90

the ideas expressed in this passage most directly contributed to which of the following developments in ancient indian society?

political divisions among indian elites

population growth due to increased food supply

social hierarchy based on castes

human sacrifice as religious ritual