"How does the modern civilization located in the Indus River Valley compare to early river civilizations from that area?" Please help me quiclky for 25 points

Back then they gained from trade that helped them to develop a more complex culture. Now, the area thrives from tourism, petroleum products, gems and jewelry, and drug formulations. 90 million people in India rose out of extreme poverty, thanks in part to robust economic growth that has improved the overall standards of living in the country

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d. it spread christianity. i just took the test and got it right.

b or c im pretty sure