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': 'Earliest menopausal symptom is : \nSelect and explain. \nA. Hot flushes, B. Osteoporosis, C. Vaginal discharge, D. Spotting', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Hot flushes', 'role': 'assistant'}]