This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Umblicial cord and diaphragm, Subject name: Anatomy
[{'content': 'All are true about peritoneal folds except \nSelect and explain. \nA. Median umbilical fold is obliterated to become urachus in adults, B. Medial umbilical fold is peritoneal fold on medial umbilical ligament, C. Medial umbilical fold covers allantois, D. Lateral umbilical fold produced by inferior epigastric vessels', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Urachus fistula is a remnant of allantoic diveiculum. It is a diveiculum of hind gut and connects umbilicus to urinary bladder. The lumen of allantoic duct-is obliterated at the time of bih. Median Umblical Ligament is the remanant of urachus. It covers allantois. Urine keeps on dribbling in urachal fistula Figure showing Urachal fistula', 'role': 'assistant'}]