What are three factors that helped martin Luther spread reforms around Europe?

Three key factors that helped Martin Luther spread his reforms across Europe include the invention of the printing press, which enabled the rapid dissemination of his writings; the growing discontent with the Catholic Church's practices, particularly the sale of indulgences; and the support of influential figures and local rulers who saw political and social opportunities in aligning with Luther's ideas. These elements created a conducive environment for the Reformation to gain traction and spread widely.