The Byzantine church became the Eastern Orthodox church and the western church became the Roman Catholic Church.
The correct answer is the following.
The effect of the Great Schism was that the church became weaker with the internal division that created two different churches: the Eastern or Greek Orthodox Church that was established in Constantinople and the Western Catholic Church based in Rome. The split occurred in 1054 after Charlemagne was crowned Byzantine Emperor and the relationships with Rome deteriorated. Political differences, jealousies. and mutual excommunications were the final arguments that prepared the stage of separation.
