Missouri Barber Practice Exam

Exercise is the best answer among the four choices listed because it is a well-known fact that engaging in physical activity regularly can improve blood circulation and organ function. Exercise can help strengthen the heart and ensure proper flow of blood and oxygen throughout the body, thereby improving organ function. On the other hand, sleeping and eating can indirectly help improve blood circulation and organ function, but they do not have the direct impact that exercise does. Reading does not have any direct correlation with improving blood circulation or organ function, making it the incorrect choice. Therefore, the best answer is A.