Answer:
Nerves.
Explanation:
The brain is becoming slower and so the nerves are affected causing some degeneration of the nerves.
 
        
             
        
        
        
A because none of the others would work
        
                    
             
        
        
        
That statemet is False
The reason why people use folic acid supplement is to prevent Anemia, stroke, and heart disease . Consuming the supplement before the child is born could also enhance the development of brain and spinal cord of the infants. The supplement cannot prevent blindness.