This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Embryology 2, Subject name: Anatomy
[{'content': 'Average reproductive life span of ovum is \nSelect and explain. \nA. 6-12 hrs, B. 12-24 hrs, C. 24-26 hrs, D. 48 hrs', 'role': 'user'}, {'content': 'Answer: B \nExplanation: LH surge occurs ~ 36 hours before ovulation LH peak occur ~ 12 hours before ovulation & marks the release of Ist polar body. This mature oocyte (ovum) remain ble for feilization for ~ 24 hours.', 'role': 'assistant'}]