This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': 'A young lady was admitted after taking an overdose of diazepam after a broken affair. She has a history of slitting her wrist previously. Most likely diagnosis is- \nSelect and explain. \nA. Narcisstic personality disorder, B. Dependent PD, C. Borderline PD, D. Histrionic PD', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Information in this question\n\n\nUnstable interpersonal relationship (broken affair)\nSuicidal attempt Self inflicted injury\n\n\nDiagnosis is a borderline personality border.', 'role': 'assistant'}]