This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Congenital malformations, Subject name: Gynaecology & Obstetrics
[{'content': 'Diethylstilbesterol causes the following defects expect \nSelect and explain. \nA. Renal anomalies, B. Incompetent cervix, C. T saped uterus, D. Vaginal adenosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Diethylstilbesterol defects Neural tube defects Vaginal and cervical adenosis Clearcell adenocarcinoma Uterine anomalies Cryptorchidism Testicular hypoplasia TEXTBOOK OF OBSTETRICS,SHEILA BALAKRISHNAN,PG NO:565,2nd edition', 'role': 'assistant'}]