Martin Luther posted his 95 Theses to protest the

• A. The authority of the Pope
• B. Use of Latin in worship
• C. Church's selling of indulgences
• D. Rejection of infant baptism

Answer: (C)

The key idea is the critique of indulgences—the practice of selling indulgences claimed to reduce punishment for sins. Luther argued that forgiveness comes through faith in Christ and true repentance, not through paying money to the church. The 95 Theses were a pointed challenge to this sale, which many saw as a corrupt misuse of church authority for financial gain, famously tied to funding church projects like St. Peter’s Basilica. This critique sparked broad questions about church practices and authority and helped ignite the Protestant Reformation. It’s not about Latin in worship, infant baptism, or broad papal authority in general, but specifically about the sale of indulgences.