Answer:
A. the chromosomes line up in the center of the cell
Explanation:
 
        
                    
             
        
        
        
Because they have antigens for both blood type A and B. And since blood type O has no antigen, that can also be received. 
There will be no reaction against any other blood (importance of having both antigens)
        
             
        
        
        
Obviously (a) getting sleep and eating healthy
        
             
        
        
        
Desertion- the act of leaving....
rampant- happening in an unrestrained...
potable- suitable for drinking because...
woo- to gain acceptance...
lax- to be lazy or to have a...
interned- being confined, especially during...