Answer:
Depending by how answer choices you can pick I'd say three. So, the correct answers would be D, A, and E.
El Cairo and the Egyptian empire suffered an strange situation during that time frame, they closed theur doors to further cultural influence, as you know Romans had had invaded and conquered Egypt, so they had already being part of the European world and European way, but they decided to close doors and develop their own culture, art, science, they became the cultural capital of the Islamic World, and proof of the closeness was the walls of the city, built around Cairo, but at the same time they took advantage of the commercial relations they had with Europe and continued to trade and sell them their products.
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