The door creaked and a rectangle of light fell onto the magazine that I was reading. I looked up to a boy who had come into the lobby was a stranger, about nineteen, tall and thin.
"Looking for someone?" I asked.
"No," the boy said. His long fingers trembled as they fumbled with the buttons of his coat.
"Well, may I help you with something?"
"No." The boy dropped his coat onto the worn tweed sofa and sat down slowly. In the light from the window his pale cheeks gleamed as if wet.
He's sick, I thought, while walking over to him. A narrow hand reached out and seized my wrist, cold, strong fingers twining around my arm like vines or snakes. I try to fight the impulse to pull away, looking down instead into the boy's troubled, grey eyes.
        
             
        
        
        
Answer: I think for a collaborative discussion to be succesful is A) all students in the group agree on one idea. 
 
        
             
        
        
        
The answer is "more" because they said both more and frequent which are synonyms
        
                    
             
        
        
        
The point of view dictates our viewpoint into knowing things, whether that be from a third-person omnicscent to a first-person tell of tale. With your specific point of view comes things in detail for each kind.