Which of the following was a major reason for the Reformation?

Attempts to reform (change and improve) the Catholic Church and the development of Protestant Churches in Western Europe are known as the Reformation. The Reformation began in 1517 when a German monk called Martin Luther protested about the Catholic Church. His followers became known as Protestants.

Explanation:

The start of the 16th century, many events led to the Protestant reformation. Clergy abuse caused people to begin criticizing the Catholic Church. The greed and scandalous lives of the clergy had created a split between them and the peasants.