Red reflectors on lane lines always mean?

tells drivers that they are going the wrong way up a one-way ramp or that they should not enter

football or basketball players.

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.