Canada, China, Indonesia, South Africa, and Vietnam. 
        
             
        
        
        
He was a teacher to deaf people and his wife was deaf and this idea that someone can't hear gave him the idea of creating a machine that could help you talk to those far away that couldn't hear you.
        
             
        
        
        
I would say overproduction and under consumption.
        
             
        
        
        
Answer:
C. No charge
Explanation:
Proton- Positive charge 
Electron- Negative charge 
Neutron- No charge