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: Anatomy
[{'content': 'Derivative of umbilical aery is: \nSelect and explain. \nA. Medial umbilical ligament, B. Superior vesical aery, C. Both of the above, D. None of the above', 'role': 'user'}, {'content': "Answer: C \nExplanation: Distal pas of the umbilical aeries form the medial umbilical ligaments, and the proximal poions remain open as the superior vesical aeries Ref: Langman's embryology 11th edition Chapter 12.", 'role': 'assistant'}]