Answer:
You could possibly start it with percentages or stats about the topic so people understand the issue/topic. 
 
        
             
        
        
        
Speeding up or slowing down, Speaking aggressively , Checking your inflection , Talking more loudly or quietly
 
        
                    
             
        
        
        
The correct answer is letter A. Pain receptor - tissue injury. Nociception refers to the processing of harmful stimuli in the nervous system. The nociceptors are also known as "Pain receptor" that responds only to tissue damages cause by either mechanical, thermal stimulation.
        
                    
             
        
        
        
Im thinking simple carbohydrates.