I dont under stand please exsplain more
Answer:
Country A: Stage 2 with a high birth rate and a youthful population and is a developing country.
Country B: Stage 4 with a low birth rate and low death rate with an aging population. It is a developed country and there is a possible Stage 5.
Explanation:
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Islam arrived in the inland of Indian subcontinent in the 7th century when the Arabs conquered Sindh and later arrived in North India in the 12th century via the Ghurids conquest