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: Unknown
[{'content': 'Umbilical artery is a branch of \nSelect and explain. \nA. Coeliac artery, B. Superior mesenteric artery, C. Anterior division of internal iliac artery, D. Posterior division of internal iliac artery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Anterior division of internal iliac artery\n\nA part of Umbilical artery persists as superior vesical artery and remaining artery becomes obliterated forming medial umbilical ligament.', 'role': 'assistant'}]