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': 'Right coronary artery arises from which sinus: \nSelect and explain. \nA. Right aortic, B. Left  aortic, C. Coronary sinus, D. Anterior aortic sinus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Right coronary artery\norigin: Left posterior aortic sinus of aorta\nSupplies :\na)\xa0 Right\xa0 atrium\n\xa0b)\xa0 right\xa0 ventricle\xa0 except\xa0 area adjoining\xa0 anterior\xa0 inter\xa0 ventricular\xa0 groove.\n\xa0c) small part of left\xa0 atrium\nLeft Coronary Artery\nOrigin:\xa0 left\xa0 posterior\xa0 aortic\xa0 sinus\xa0 of ascending aorta.\nSupplies:\na) Left\xa0 atrium\nb) left\xa0 ventricle except area adjoining posterior\xa0 inter\xa0 ventricular\xa0 groove\xa0\nc)\xa0 small\xa0 part\xa0 of right ventricle.', 'role': 'assistant'}]