Answer:
B. Negative Reinforcement
Explanation:
They are reinforcing her behavior of being bothersome by inherently rewarding her instead of letting her know they are busy and teaching her patience
 
        
             
        
        
        
The heart, the blood vessels, and the veins are the components that carry oxygen from the heat to all parts of the body
        
             
        
        
        
A and B probably take the longest
        
                    
             
        
        
        
Answer:
in vivo exposure therapy
Explanation:
This kind of therapy is based on the idea that the patient should face the trigger that produces discomfort. Although  it can be thought as a counterproductive kind of therapy, it is necessary to take into account that the professional should be very well prepared in order to recognized the level of anxiety the patient is going through when the in vivo exposure therapy is taking place, and it is possible to simply stop it when they consider it is not healthy for the patient.
On the other hand, the therapy is very well known to help patients facing diferent kinds of phobias and to be very successful.