One cluster of personality disorders marked by dramatic, attention seeking or impulsive behaviors is exemplified by the personality disorder. avoidant schizotypal borderline dissociative

The correct answer should be borderline personality disorder.
When it comes to this disorder, patients suffering from it can change their moods and behaviors quite fast - from a calm one, to an erratic one in just a few minutes. These often result in impulsive (and often negative and dangerous) actions, episodes of extreme anger, anxiety, fear, sadness, depression, etc.