Answer
Desiderius Erasmus's main contributions to the move toward the Protestant Reformation was Exposing corruption in the Church.
Explanation
The main goal of reformation was to change the beliefs of the religious aspects. This is because the political rulers wanted to overthrow the church leaders and start controlling even the expense of the churches using their political powers .
Many other things led to the reformation. people started being against the catholic church for they were abusing the clergy.They also started criticizing the corruption and the abuse of the office of the pope.