B, Social acts are based off communication. <span />
        
             
        
        
        
Answer:
a) excess calories
Explanation: Technically excess calories pretty much cover all other answers.
 
        
                    
             
        
        
        
They use the quality of the product,the price and the place in which it can easily be reached
        
                    
             
        
        
        
All cells are able to metabolize, divide, grow, respond to stimuli, digest nutrients, move, and excrete wastes.
        
             
        
        
        
Answer:
D, are showing responsibility