Answer:D) college students are not randomly selected from the larger population, and they may not represent all young adults in our society.
Explanation:
 
        
             
        
        
        
The answer is B, because muscle endurance let's you do things like running for longer periods of time and muscular strength let's you do things like lift heavy weights.
        
                    
             
        
        
        
Goniometer, hope this helps!
        
             
        
        
        
Look at a picture and directions of correct posture, then com[are yourslef to it
:)