The most common reason that Behaviorism is disliked and rejected by our population is because it acknowledges the complete loss of, which we, as individual, hate parting from
Self-awareness
Free will
Employment

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.