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': 'All of these supply the first 2 cm of the duodenum EXCEPT: \nSelect and explain. \nA. Supraduodenal aery, B. Common heaptic aery, C. Gastroduodenal aery, D. Superior pancreaticoduodenal aery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Supraduodenal aery', 'role': 'assistant'}]