Insulin is a chemical that is produced by the pancreas and controls blood sugar. 
Hope this helps!
        
             
        
        
        
D) if you stretch after a workout it gets rid of the lactic acid. but after you stretch or cool down it could potentially contribute to all of the above because the lactic acid restricts and makes other bodily functions more difficult
        
                    
             
        
        
        
B: easily digestible carbohydrates. carbs usually take a long time to digest but give you good energy. many people will have pasta for dinner the night before a game. 
        
             
        
        
        
The answer is a eating disorder. Reason is because b,d and c are all physical disorders in which your mind has no control over. However eating disorders are usually caused by a form of stress or worry about somthing in your head that causes you to not want to eat