The correct answer is C) the period when two popes argued over who was the true leader of the church.
The Great Schism was the period when two popes argued over who was the true leader of the church.
In the history of humankind, there have always been differences in religion. Power and control have divided religions, and it was the case of the Christian Church. The Great Schism was the split of the Western Roman Catholic Church and the Eastern Orthodox Church in 1054. There were basically, theological and political differences inside the hierarchy of the church that derived in the division of these two.