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': 'Aoic opening in diaphragm transmits : \nSelect and explain. \nA. Oesophagus, B. Thoracic duct, C. Gastric nerve, D. IVC', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B. i.e. Thoracic ductAoic opening lies in osteoaponeurotic pa of diaphragm between right & left crus at To veebral level and it transmits - aoa, azygous vein & thoracic duct', 'role': 'assistant'}]