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: Pathology
[{'content': 'Intrauterine exposure of diethylstiboesterol is associated with - \nSelect and explain. \nA. Squamous cell carcinoma of cervix, B. Adenocarcinoma of endometrium, C. Clear cell adenocarcinoma of vagina, D. Sarcoma of uterus', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Clear cell adenocarcinoma of vagina", 'role': 'assistant'}]