The statement that best describes the origins of the Reformation is: "Martin Luther successfully built on more than a century of other scholars' ideas, causing more people to speak up and leave the Catholic Church."
This option highlights the cumulative intellectual tradition that led to the Reformation, including criticisms of the Catholic Church that had been developing for many years prior to Luther's actions. While Luther's excommunication and other factors played significant roles, his success was largely due to his ability to articulate and amplify existing concerns within the Church.