The correct answer is D) Many Christians in western Europe began converting to Greek and Russian Orthodox Christianity.
What was not a factor that helped bring about the Reformation was "Many Christians in western Europe began converting to Greek and Russian Orthodox Christianity."
The factors were the sale of indulgences to raise money for the pope's use angered many people, some Church leaders ignored their people's needs and pursued wealth and power, and as more people were able to read the Bible themselves, there was disagreement on its meaning.
During the 16th century, important figures challenged the authority of the Catholic Pope and questioned its power and influence. We are referring to Martin Luther, King Henry VIII, and John Calvin. These differences split the church and created disputes, persecutions, and wars.
