Answer:
C and D.
Step-by-step explanation:
Papal supremacy is the doctrine of the Catholic Church that the Pope, by reason of his office as Vicar of Christ, the visible source and foundation of the unity both of the bishops and of the whole company of the faithful, and as pastor of the entire Catholic Church, has full, supreme, and universal power over the whole Church, a power which he can always exercise unhindered:
The Great Schism split the main faction of Christianity into two divisions, Roman Catholic and Eastern Orthodox.