Answer:
C. Borderline Personality Disorder
Step-by-step explanation:
Borderline Personality Disorder is defined as a condition which is characterized by a difficulty in regulating emotion. Many people who experience this personality disorder have mood swings which make the person experience extreme emotions for long periods of time. This also leads to the person having a hard time trying to return to a stable mood after experiencing an emotionally triggering event. These triggering events can be very stressful and traumatic.