Answer:
Both A and B 
Explanation:
Because RNA is single stranded and the DNA has a helix shape
 
        
             
        
        
        
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<span>The model cell swells because it is in a hypotonic solution. The water enters the cell to move the glucose cells out into a solution to create equilibrium.</span>
        
             
        
        
        
So you know what to do and to keep yourself and others protected.