Respuesta :
Answer: D. Byzantine Empire
Explanation: Eastern Orthodox Christianity is one of the two dominant churches in Christianity. It was created after the Great Schism of 1054, when the Christian Church was split into the Western Catholic and Eastern Orthodox. The seat of the Patriarch of the Eastern Orthodox Church was in Constantinople (Istanbul), and today it is. At the time of the dissolution until its collapse, Constantinople was the capital of the Byzantine Empire.
Answer:
D. Byzantine Empire
Explanation: The empire the was center of eastern orthodox Christianity is the "Byzantine Empire," also known as the center empire of orthodox Christianity. You're Welcome :) <3