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': 'Third coronary aery is - \nSelect and explain. \nA. Right coronary aery, B. Left coronary aery, C. Conus aery, D. Anterior interventricular aery', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e.,Conus aeryThird coronary aery is seen only in 50% of human heas. It is also called conus aery.The conus aery is a small early branch off the right coronary aery (RCA) circulation.", 'role': 'assistant'}]