This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pathology of Conception, Subject name: Gynaecology & Obstetrics
[{'content': 'Primary amenorrhoea in seen in all except - \nSelect and explain. \nA. Kallman syndrome, B. Turner syndrome, C. MRKHS syndrome, D. Sheehan syndrome', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Sheehan syndrome Secondary sexual characteristics normalo Imperforate hymeno Transverse vaginal septumo Absent vagina and functioning uteruso Absent vagina and non-functioning uteruso XY female - androgen insensitivityo Resistant ovary syndromeo Constitutional delaySecondary sexual characteristics absentNormal statureo Hypogonadotrophichvpogonadismy Congenitalo Isolated gonadotrophin-releasing hormone deficiencyo Olfactogenital syndrome y Acquiredo Weight loss/anorexiao Excessive exerciseo Hyperprolactinaemiao Hypergonadotrophichypogonadismy Gonadal agenesiso Chromosomal aberrations resulting from XX-agenesisy Gonadal dysgenesiso Turner's mosaico Other X deletions or mosaicso XY enzymatic failureo Ovarian failureo GalactosaemiaShort statureo Hypogonadotrophichypogonadisrny Congenitalo Hydrocephalusy Acquiredo Traumao Empty sella syndromeTumourso Hypergonadotrophichypogonadismy Turner's syndromey Other X deletions or mosaicsHeterosexual developmento Congenital adrenal hyperplasiao Androgen-secreting tumouro 5a-reduciase deficiencyo Partial androgen receptor deficiencyo True hermaphroditeo Absent mullerian inhibitor", 'role': 'assistant'}]