The group that does not receive treatment in an experimental group is the control group.
        
             
        
        
        
B, D, and E would all be qualifying answers
        
             
        
        
        
Answer:
D
Explanation:
It is a sentence fragment. It isn't a complete idea.
 
        
                    
             
        
        
        
Answer:
The parts of an expression or equation being added or subtracted. 
Explanation:
 
        
             
        
        
        
The nouns are president, class, and class officials. hope this helps !