Obsessive-compulsive personality disorder (OCPD) is marked by a chronic preoccupation with rules, order, and control.
People with OCPD often show extreme perfectionism that interferes with task completion.
They focus on details, organization, and schedules to an unhealthy degree.
This makes OCPD distinct from other disorders like avoidant, dependent, or narcissistic personality disorders.
Avoidant personality disorder involves social inhibition and feelings of inadequacy.
Dependent personality disorder is about excessive dependence on others for decision-making.
Narcissistic personality disorder centers on grandiosity and need for admiration.
Therefore, the correct answer is Obsessive-compulsive personality disorder.