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: Gynaecology & Obstetrics
[{'content': 'Which of the following modalities have shown best result for pre menstrual syndrome? \nSelect and explain. \nA. SSRI, B. Progesterone, C. Oestrogen, D. Anxiolyties', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Premenstrual disorders:\n• Frequently women of reproductive age experience symptoms during the late luteal phase of their menstrual cycle, and collectively these complaints are termed premenstrual syndrome (PMS) or premenstrual dysphoric disorder (PMDD)\n• It is mostly seen in women aged to 30–45 years\n\xa0\nTreatment of PMS:', 'role': 'assistant'}]