The development of trade in West Africa was aided by the
- emergence of traditional rulers
-
arrival of the Portuguese
- Introduction of tax payment
- introduction of money
The correct answer is: B
Explanation
Portuguese expansion into Africa began with the desire of King John I to gain access to the gold-producing areas of West Africa. The trans-Saharan trade routes between Songhay and the North African traders provided Europe with gold coins used to trade spices, silks and other luxuries from India