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': 'Which of the following aoic arches is known as pulmonary arch: \nSelect and explain. \nA. II, B. IV, C. V, D. VI', 'role': 'user'}, {'content': "Answer: D \nExplanation: The sixth aoic arch, also known as the pulmonary arch, gives off an impoant branch that grows toward the developing lung bud Ref: Langman's embryology 11th edition Chapter 12.", 'role': 'assistant'}]