This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood Vessels of Thorax, Subject name: Anatomy
[{'content': 'Arch of aorta contributes to formation of all of the following except - \nSelect and explain. \nA. Left common carotid artery, B. Left subclavian artery, C. Brachiocephalic trunk, D. Right common carotid artery', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Right common carotid artery o Branches of arch of aorta are : (i) Brachiocephalic trunk, (ii) Left common carotid artery, and (iii) Left subclavian arteryo Right common carotid artery and right subclavian artery arise from brachiocephalic trunk (Brachiocephalic trunk divides into right common carotid and right subclavian arteries).", 'role': 'assistant'}]