What impact did the practice of religion have on transit Hara trade routes? Is it A the use of Arabic helped with communication on trade routes or B the practice of Islam influenced many people to trade in west Africa or C Christianity spread through West Africa and influence people to trade or D artifacts specific to the Jewish religion, became dominant on songhai trade routes.

The correct answer is B the practice of Islam influenced many people to trade in West Africa. Islam played a significant role in shaping the culture and trade networks of West Africa, as many traders and merchants were practicing Muslims. The spread of Islam along the trans-Saharan trade routes facilitated communication and cooperation among different ethnic groups and helped to create a common cultural and commercial bond among traders.