This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': "The remnant of an omphalomesenteric duct is \nSelect and explain. \nA. Median umbilical ligament, B. Meckel's diveiculum, C. Median umbilical fold, D. Omphalocele", 'role': 'user'}, {'content': "Answer: B \nExplanation: The omphalomesenteric duct is an embryonic structure which connects the yolk sac to the midgut, it gets obliterated between the 5thand 9th week of gestation, failure of which result in remnants like Meckel's diveiculum or cyst or fistula The median umbilical ligament is a remnant of the urachus The medial umbilical ligaments are a remnant of the umbilical aeries Ref: Gray's 39e/p-1289", 'role': 'assistant'}]