Select the correct answer. The martial arts began hundreds of years ago Poor people had no weapons. They needed combat skills. They needed sell-defense. People learned to use their hands and feet as weapons. Which sentences help you to know that a weapon is used for fighting? A. Poor people had no weapons B. They needed combat skills. They needed self defense. C. People learned to use their hands and feet.

The question asks which sentences indicate that a weapon is used for fighting. Option A, "Poor people had no weapons," does not directly imply that a weapon is used for fighting. It simply states that poor people did not have weapons. Option B, "They needed combat skills. They needed self defense," suggests the need for fighting skills and self-defense, but it does not explicitly state that a weapon is used for fighting. Option C, "People learned to use their hands and feet," directly implies that people learned to use their body parts as weapons for fighting. Therefore, the correct answer is Option C.