Geography influenced the language, politics, and power centers of both the Eastern and Western Church.
This response is the most accurate as it acknowledges that geographical differences played a significant role in shaping the characteristics of both churches, including language, political structures, and centers of authority, leading to the eventual East-West Schism. The Latin language in the West and Greek in the East, as well as the differing political relationships (papal supremacy in the West versus caesaropapism in the East), were influenced by their respective geographic contexts.