The Roman Catholic Church so powerful in Europe during the Middle Ages because Church officials controlled knowledge and learning and often held influential position in government.
Option B
Step-by-step explanation:
The Catholic Church became very powerful and rich at the time, it had a great value in the society as the church officials controlled learning and knowledge. They had a great influence on the society. People even used to give 1/10th of their earnings. The other reasons are that it was a major institution that left after the Roman Empire destroyed. At that time ''Christianity'' became the religion of the ancient Rome that even gave more importance to the Catholic Church. All the other reasons mentioned do not have a valid relevance to this.