I believe that the answer is A, continental-continental.
        
                    
             
        
        
        
d answer is correct that help
 
        
             
        
        
        
The maximum oxygen uptake is known as the VO2 max.
        
                    
             
        
        
        
Explanation:
Atoms are the smallest unit of matter that can't be broken down chemically. Molecules are groups of two or more atoms that are chemically bonded. Ions are atoms or molecules that have gained or lost one or more of their valence electrons and therefore have a net positive or negative charge.
 
        
             
        
        
        
to be as exact as i can it is all of them they all work together to make water good.