Final answer:
Martin Luther wrote the 95 arguments against the sale of indulgences, also known as 'get out of purgatory free cards.' He believed that only God could grant forgiveness and that purchasing indulgences went against the doctrine of justification by faith.
Step-by-step explanation:
Martin Luther wrote the 95 arguments against the sale of "get out of purgatory free cards" also known as indulgences. He believed that only God could grant forgiveness and that purchasing indulgences went against the doctrine of justification by faith. Luther's Ninety-five Theses were meant to spark a discussion and reform within the Catholic Church.