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': 'What passes through diaphragm at T12 level ? \nSelect and explain. \nA. Esophagus, B. IVC, C. Thoracic duct, D. Phrenic nerve', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Thoracic duct", 'role': 'assistant'}]