Answer: The answer is A: stretching many groups of muscles throughout the body.
Stretching many groups of muscles throughout the body BEST describes balanced stretching.
Explanation: Stretching refers to physical exercise that extends the muscles. It also refers to elongating the muscles from its loosened state and slowly expanding it. Stretching increases flexibility, improves blood circulation to our entire body, improves and increases the range of motion especially to the joints.
Balanced stretching refers to exercising the entire body by doing stretching exercise. The entire body is stretched to relieve tension and relax all the muscles in the body. This is of great benefit to the body because all the muscles are stretched instead of one or few muscles.