2 insulation 
3 protection 
5 sneeze
7 collide
        
             
        
        
        
Answer:
I don't see the point for an experiment like this tho...
Explanation:
 
        
             
        
        
        
I would say the answer is c.
        
             
        
        
        
I think the answer would be D. Hope this helps 
        
                    
             
        
        
        
D is the answer. The talk about times suitable for their guest and even are talking to the boy saying how his party is going to be fun