Which of the following developments most assisted the success of the Protestant
Reformation in Europe?

A majority of people in Europe were clearly unhappy with the conduct of
Catholic Church officials before Luther's 95 Theses encouraged them to act
out

Sermons from Martin Luther, John Calvin, and other prominent priests were
published using the printing press, allowing their ideas to spread more
quickly than would have been possible in earlier eras.

The Catholic Church was embarrassed by their mistakes and willingly
changed in an attempt to retain members

Global exploration and conquest allowed Protestant nations to gain
resources that helped them to defeat their Catholic enemies