Answer: Cat owners should be forced to keep their cats indoors because cats overhunt bird species. 
Explanation: This one is more logical and has a reasoning rather than b.
 
        
             
        
        
        
Seems most consumed by feelings of guilt
        
             
        
        
        
The answer is: 
b. to influence.
Hope that helped
        
                    
             
        
        
        
The source stands to make a profit