How did the practice of selling indulgences contribute to the Protestant Reformation?
A. It led people to believe that the Catholic Church was too
concerned with material wealth.
B. It angered people because indulgences were only sold to those
who spoke Latin.
C. It resulted in a violent struggle for power between rival Catholic
popes.
D. It reflected the Catholic Church's belief that it was impossible for
Catholics to sin.

C

Explanation:

Indulgences posed a great threat because the Pope's were taking money from others. Indulgences was a hoax because they said if you have offerings, it would minus off years in purgatory

(hope this helps if not tell me and ill try to correct my response -purx)

C or D

Explanation:

I'm not sure on C because why would they use violence but it is probably  C.

a.) d-day invasion of normandy.

hope this !

d is the answer. leo should include the source.