Following Mansa Musa's pilgrimege to Mecca it was not unusual to see mosques like the Great Mosque of Djenne in Mali. What does this tell us about the impact of Musa's trip? A) Mansa Musa was able to halt the spread of Islam into Western Africa. B) The kingdom of Mali was poor and unable to keep up with modern architectural techniques. C) Building projects such as those to build mosques became a major economic support system for Mali. D) Not only did Mansa Musa impact the spreading of Islamic education, advancements in architecture were also seen.