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': 'True about right atrium is : \nSelect and explain. \nA. Auricle lies superolaterally, B. Related to central tendon of diaphragm at Tio level, C. Coronary sinus lies between fossa ovalis and IVC, D. SVC opening is gaurded by endocardial valve', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Coronary sinus lies between fossa ovalis and IVC', 'role': 'assistant'}]