The tone which is not effective for convincing people that they should subscribe to your perspective is definitely C) sarcastic. Nobody is going to listen to you if you offend or mock them.
        
             
        
        
        
Answer:
C.
Explanation:
All the others are negative.
A suggests losing sleep.
B suggests a problem when you're away.
C tells you a benefit of walking a dog.
D tells you it's expensive.
Only C tells you a good thing about having a pet.
 
        
             
        
        
        
Answer:
A run-on sentence results from two or more complete sentences being connected without any punctuation. The best way to find a run-on sentence is to determine whether there is more than one independent clause in the same sentence without punctuation.
Explanation:
 
        
                    
             
        
        
        
C is considered to be a sentence fragment because it looks like a sentence but it isn't.
 
        
             
        
        
        
A because this is the first Christmas that we have not needed to economise