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': 'A 16-year-old girl with height 5inches present with primary amenorrhea and rising FSH . The histological finding most consistent with her conditions is \nSelect and explain. \nA. Marfan syndrome, B. Corpus luteal hemorrhage, C. Low oocyte in ovary, D. Pituitary Apoplexy', 'role': 'user'}, {'content': "Answer: C \nExplanation: Hypergonadotrophic Primary Amenorrhea\nCauses\n\nAbnormal sex chromosomes: 45,OX, Abnormal X\nNormal sex chromosomes: 46 XX Pure gonadal dysgenesis, Swyer's syndrome, Savage syndrome\n\nCharacteristics\n\nGonadal failure\nThese women have streak ovaries with the absence of ovarian follicles\nNo estrogen production\nElevated levels of FSH\nA progesterone challenge test is negative", 'role': 'assistant'}]