I would think it could be A.
 
        
                    
             
        
        
        
I think your answer is choice C
        
             
        
        
        
Answer:
A one-lens eyeglass. 
Explanation:
That is what a monocle is
 
        
             
        
        
        
I think first sentence and last two. The first one is appealing to a pet owner's feelings of wanting to be a good pet owner and the merchant is using that to persuade them to buy the biscuits. The last two sentences are appealing to a person's feelings of loneliness or being left out and using that to convince you to buy a pool. They both appeal to people's emotions in order to persuade them towards action, that's what it means to use pathos.