Which of the following was the most important influence on Africa caused by trade relationships with others?

A. bananas

B. horses

C. stone

D. Islam

Islam was the most important influence on Africa caused by trade relationships with others.

Answer: Option D

Explanation:

Trade and travellers have always credited the spreading of new ideas in the region they travel to around the world and the continent of Africa is no exception to this.

It was during the 8th & 9th century when many Arab traders and also the travellers started to spread ideas of Islam in the region of Eastern coast of Africa and also in the central and western Sudan.

With time, the influence had spread so much the Rulers encouraged the construction of mosques and Islamic learning. A new method of weighing and art of writing was introduced in Africa by Islam.

The answer is d islam