Final answer:
The trade between East Africa and Arab merchants via the Indian Ocean maritime system involved the exchange of slaves and gold for silk, spices, and glass.
Step-by-step explanation:
The correct answer choice is B.
Arab merchants traded slaves and gold for silk, spices, and glass.
This trade between East Africa and Arab merchants via the Indian Ocean maritime system was part of the larger Indian Ocean trade network. Slaves and gold were highly sought after by Arab merchants, while East Africa was known for its abundance of ivory and gold. In exchange for these valuable commodities, Arab merchants brought goods like silk, spices, and glass from Asia and the Middle East to trade with the people of East Africa.
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