It is not a or b, because it helps kids of all skill levels. Because of this, your answer should be C, because Piaget believed that teaching should be done through actually teaching students different concepts, instead of making them just know the answers. That is what cooperative learning helps do.
        
                    
             
        
        
        
Instituting droplet precautions is the first and highest priority. Hope this helps! :D
        
             
        
        
        
The two main fibers are : soluble and insoluble.
        
                    
             
        
        
        
B. It provides aid to the victims of natural disasters and wars.