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': 'Double aoa occurs due to \nSelect and explain. \nA. Non development of the right 4th aoic arch, B. Non development of the left 4th aoic arch, C. Non division of truncus aeriosus, D. Persistence of distal poion of the right dorsal aoa', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Double aoa occurs due to the persistence of distal poion of the right dorsal aoaRef: Inderbir Singh&;s Human embryology; Tenth edition; Pg 257', 'role': 'assistant'}]