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': '. Period of amenorrhea followed by masive bleeding is seen in premenopausal women with: \nSelect and explain. \nA. Irregular ripening, B. Irregular shedding, C. Metropathia hemorrhagica, D. All of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]