I think your answer would have to be A.
        
                    
             
        
        
        
Goldfish will move differently depending on the tempature of water
        
             
        
        
        
It creates a weary tone, in my opinion
        
                    
             
        
        
        
Answer:
yess there is some change in our voice 
due to pinch variations
These adjustments allow us to use pitch changes to achieve certain meaningful effects in speech. The most important of all factors for the pitch of the voice is the vibration of vocal cords.
 
        
                    
             
        
        
        
The answer however is most likely 
<span>D.They are too informal for this type of writing.</span>