Answer:
 ball hit into the net, may still be kept in play (up to 3 hits) provided that a player does not make contact with the net. Players may not touch the net. If 2 opposing players touch the net simultaneously, the ball is declared dead and is replayed
 
        
             
        
        
        
BMI of less than 18 is considered underweight... However, when considering BMI, you do want to take into consideration muscle mass, height, etc...
Over 35 is obese
I would choose A, because having a BMI less than 35, 30 or 40 wouldn't be a risk factor.
 
        
                    
             
        
        
        
Your answer is body cavities
        
             
        
        
        
Answer: playing singles tennis or a bike on a hilly surface
Explanation: