I am going to assume factor payment because there aren't any multiple choice answers.
Answer:
They both focused on religion. The Byzantine Empire and the Western Empire were the part of the Roman Empire, their painting reflected on their believes in Christianity. Though they followed different customs, depicted God in Churches such as Hagia Sophia.
Explanation:
I believe the answer is D. Here is a really good link to help you figure out the concept.
http://www.takadimi.net/documents/Takadimi%20short%20guide%20for%20Web.pdf
Hope this helps!
I feel like the answer would be c. hope this helps.
How do I draw it- explain more in depth please