The correct answer
here is D. Johann Tetzel started selling indulgences Wittenberg to anyone who was
be kind enough to donate the money for the reconstruction effort in Rome where
they were rebuilding the Cathedral of St. Peter. This prompted Luther to nail
his famous 95 Theses on the door of the Church in Wittenberg as Luther believed
that faith alone is enough to grant salvation through Jesus Christ. This would
later start the great wave of Protestantism.
