We tend to perceive more pain when others around us also report feeling pain. this research finding indicates that pain perception is affected by both biological and what other influences?

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.