No not all communication serves a positive purpose
        
             
        
        
        
It would be a futuristic school and cool things would be there like a touch screen projector and the desks would have a computer built in it
        
             
        
        
        
B) :) ////////////////////////
        
             
        
        
        
I would think 25% if you wiki the percentage you might get the answer.
 
        
                    
             
        
        
        
<span>When the writer describes his experience of reading a magazine article, it is an example of B. anecdotal evidence
Anecdotal evidence is the evidence that rely too much on an individual's experience.
Anecdotal evidence is considered an unreliable evidence because it often do not represent the whole consensus</span>