This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urethra & Penis, Subject name: Surgery
[{'content': 'All of the following are features of exstrophy of the bladder, except: \nSelect and explain. \nA. Epispadias, B. Cloacal membrane is resent, C. Posterior bladder wall protrudes through the defects, D. Umbilical and inguinal hernia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Cloacal membrane is present* Basic defect in ectopia vesical is abnormal overdevelopment of Cloacal membrane and its rupture', 'role': 'assistant'}]