Question

Which of the following was a major contributor to the Protestant Reformation?
A. Europeans demanded that the Catholic Church reunify with the Eastern Orthodox Church.
B. The Crusades resulted in huge numbers of Europeans converting to Judaism and Islam.
C. Some Christians lost respect for Catholic leaders who engaged in political power struggles.
D. The Black Death greatly strengthened most Europeans' faith in the Catholic Church.

Answer 1

It was that "C. Some Christians lost respect for Catholic leaders who engaged in political power struggles" that was a major contributor to the Protestant Reformation, since the Reformation was the first major successful challenge to the authority of the Catholic Church. 

Answer 2

C. Some Christians lost respect for Catholic leaders who engaged in political power struggles.