Refer to the image. A 14th century Catalan Atlas. The atlas shows a map of the western part of North Africa and the southern tip of Spain. A figure of Mansa Musa sits cross-legged wearing a crown and holding a sceptre in the right-hand corner. Cultural depictions and symbols are on the map.

The Catalan Atlas, created in the late 14th century, includes cultural depictions overlaid on a map of North Africa and Spain. The figure in the lower right is Mansa Mūsā, who ruled Mali from 1307 to about 1332.

Based on the image and your knowledge of world history, which of the following best describes the effects of the trans-Saharan trade on religion throughout North Africa?

Missionaries created temples along trade routes as places to study the tenets of Buddhism.
Traders brought the principles of Christianity with them and built Catholic churches.
Trade with European countries such as Spain led to an increase in Catholic practices.
The Islamic religion spread throughout the region due in large part to the influence of Muslim traders.