What impact can alcohol use have on a teen's education and career goals?

It can cause them to do badly in school or get in legal trouble. Having an alcohol use in teens makes them having vices that can bring bad in growing up and also in school.  Not only in school this also may get them in trouble because having the abuse of the alcohol can make teens be more aggressive on everything. 

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.