It’s the subsoil layer. Hope this helped :)
        
                    
             
        
        
        
I’m not sure but what i know is the u need to find the problem by steps
        
                    
             
        
        
        
<span>Option A. The pathogenesis of this disease called acute pancreatitis It starts suddenly and increases in intensity producing a self-digestion of the pancreas that can reach nearby organs. It is caused by an alteration in the secretion of enzymes that causes self-digestion. During the recovery process, the organ regains its shape and functions normally completely in most cases.</span>
        
             
        
        
        
Answer:
single strand RNA virus 
Explanation:
HIV has pair of single strand of RNA