I’d say A, but what’s the context of this?
        
                    
             
        
        
        
C the opposition thats the answer 
        
             
        
        
        
I think its D. to advance
because the affix on immovable is <em>im</em> and if you take that off you <em>IM</em> movable which clearly means able to move or advance. HOPE THIS HELPED!!!
        
             
        
        
        
Answer:
A Fires help remove older trees that crowd forests.
Explanation: