acupuncture is one of the key components of the system of traditional chinese medicine (tcm). in the tcm system of medicine, the body is seen as a delicate balance of two opposing and inseparable forces: yin and yang. yin represents the cold, slow, or passive principle, while yang represents the hot, excited, or active principle. among the major assumptions in tcm are that health is achieved by maintaining the body in a "balanced state" and that disease is due to an internal imbalance of yin and yang.

which statement supports the idea that acupuncture treatments are believed to balance the systems of the body?