This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Psychiatry
Borderline personality disorder 
Select and explain. 
A. Chronic feeling of emptiness, B. Unstable interpersonal relationship, C. Grandiosity, D. Low self esteem
B: Unstable interpersonal relationship
Answer: B: Unstable interpersonal relationship 
Explanation: Borderline personality disorder The central feature of borderline personality disorder is a pervasive pattern of unstable and intense interpersonal relationship, self perception and mood The patient make recurrent suicidal threats and gesture and a small propoion of patients carry out the act or self multilation like cutting or burning The patients have difficulty in controlling their anger and impulsitivity. There is unceainty about personal identity *EMOTIONALLY UNSTABLE *Unstable and internse relationship *Disturbance in self image *Impulsivity *Affective instability *Chronic feeling of emptiness *Suicidal behavior *Difficulty controlling anger Dissosiative symptoms Reference: Kaplon and sadock, 11 th edition, synopsis of psychiatry, 11 th edition, pg no. 868