The answer is A 
Using energy
        
             
        
        
        
What are the other answers? 
I do not think it is A.
Is Simmering an option?
        
             
        
        
        
<span>This is called an epidural. A procedure that delivers continuous pain relief to the lower part of your body while allowing women to remain fully awake. It decreases sensation of pain. The medication is inserted into the epidural space just outside the spinal cord and spinal fluid. This is the most common method used in the United States.</span>