Respuesta :
Answer:
3. I, II and III
Explanation:
All the below options are examples of diffusion of islam:
I. Muslim merchants spread Islam to African traders on the trans-Saharan route.
II. Medieval Spanish architecture incorporates Islamic art.
III. Ottoman Turks converted the Hagia Sophia into a mosque.
The forth option does not represent islam diffusion for it does not show the spread of islam through diffusion.