Eras and wars cuz they had no other things to do
C is the correct answer, I believe.
The Great Schism came about due to a complex of mix of religious disagreements and political conflicts. One of the many religion disagreements between the western (Roman)and eastern (Byzantine) branches of the church had to do with whether or not it was acceptable to use unleavened bread for the sacrament of communion.
Get this from google hope it helps :)
