51:58 Exercise provides a healthy outlet for feelings, which helps improve . A. emotional health B. mental health C. spiritual health D. environmental health

i think the answer is strength

absolute strength refers to the maximum force exerted by a body irrespective of body size. relative strength on the other hand is the force exerted by a body in relation to muscle size or body weight.

so the answer is: c. absolute strength measures strength regardless of your body size, while relative strength measures strength adjusted for your weight.