Answer:
C
Explanation:
It's pretty simple really, just find the <em>Benefit</em>. Pollution is definitely a harmful effect, disease is also not a benefit, and depletion of fish population is bad, so easing demand on commercial fisheries is the answer
 
        
             
        
        
        
The answer for that question is a
        
             
        
        
        
Answer:
substitution, deletion, insertion (in that order)
Explanation:
I did the assignment-
 
        
             
        
        
        
LOWER  is the answer 
I hope this help