The correct response is:
Geography influenced the language, politics, and power centers of both the Eastern and Western Church.
This answer reflects how geographic factors shaped the development of distinct cultural, linguistic, and political characteristics in the two branches of Christianity, ultimately contributing to the East-West Schism. The differences in location led to variations in language (Latin in the West and Greek in the East), the centers of religious authority (Rome versus Constantinople and other cities), and the relationship with political structures (papal supremacy versus caesaropapism).