Refer to the image. A close-up of the Catalan Atlas from 1375. The map has depictions of trade routes as lines, boats, A person on a camel, small houses, and a king in the right-hand bottom corner. The map is written in Arabic.

Portion of the Catalan Atlas, 1375, attributed to Abraham Cresques; depicts trade throughout North Africa and southern Spain at the mouth of the Mediterranean Sea

Which of the following cities developed as an important center of trade and religious scholarship in the Islamic world?

Timbuktu
Beijing
Genoa
Calicut