What 3 regions were engaged in Indian ocean maritime trade?

The three regions engaged in Indian ocean maritime trade were East Africa, the Arabian Peninsula, and South Asia. These areas were connected through a network of trade routes that facilitated the exchange of goods such as spices, textiles, and precious metals. Additionally, Southeast Asia played a significant role in this trade network, particularly through the Straits of Malacca. The interactions among these regions fostered cultural exchange and economic growth, shaping the history of maritime commerce.