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': 'Boundary of the Kochs triangle is not formed by- \nSelect and explain. \nA. Tricuspid valve ring, B. Coronary sinus, C. Tendon of todaro, D. Limbus fossa ovalis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Boundaries of triangle of Koch\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Superior- Tendon of Todaro\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Inferior- Septal leaflet of Tricuspid valve\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Basal- Coronary sinus orifice', 'role': 'assistant'}]