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
Earliest menopausal symptom is : 
Select and explain. 
A. Hot flushes, B. Osteoporosis, C. Vaginal discharge, D. Spotting
A: Hot flushes
Answer: A: Hot flushes 
Explanation: Hot flushes