The correct responses are:
- Both celebrated the sacraments.
- Both recognized Easter as the most important holy day.
The statements "Both accepted the patriarch’s authority over all Christians" and "Both allowed priests to marry" are not accurate in the context of the differences between the Eastern Orthodox and Roman Catholic Churches. The Roman Catholic Church recognizes the authority of the Pope, while the Eastern Orthodox Church has a council of patriarchs without a single leader. Additionally, while Eastern Orthodox priests are generally allowed to marry, Roman Catholic priests are required to remain celibate.