Final answer:
Extreme emotions and the need to be the center of attention are indicative of Histrionic personality disorder, which involves excessive attention-seeking and a need for approval.
Step-by-step explanation:
Extreme emotions and the need to be the center of attention are characteristics of B) Histrionic personality disorder. This mental health condition is characterized by a pattern of excessive attention-seeking emotions, an excessive need for approval, and inappropriate seductiveness. Comfortability in being the center of attention might be a trait of other personality disorders as well, such as Narcissistic personality disorder, but it is not typically associated with Avoidant personality disorder or Obsessive-compulsive personality disorder. Histrionic personality disorder is marked by a constant demand for attention, quick emotional shifts, and superficial expressions of emotions, which are long-standing behaviors that are consistent and not due to any substance abuse or medical condition.