One of the factors which helped the spread of Islam in West Africa was

One of the factors that helped the spread of Islam in West Africa was the establishment of effective trade relationships. This was due to the fact that trade was a major part of the West African economy, and many merchants and traders who were involved in this trade were Muslims. As they traveled and interacted with local communities, they shared their religious beliefs and practices with others, which helped to spread Islam throughout the region. Additionally, these trade relationships also helped to connect West Africa with other Muslim-majority regions, such as the Middle East, which further facilitated the spread of Islam.