This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
[{'content': 'Structure passing through esophageal opening of diaphragm \nSelect and explain. \nA. Right phrenic nerve, B. Azygous vein, C. Gastric nerves, D. Thoracic duct', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Oesophageal opening transmits gastric or vagus nerves. B D CHAURASIA&;S HUMAN ANATOMY LOWER LIMB ABDOMEN AND PELVIS VOLUME-2,SIXTH EDITION Page no-333', 'role': 'assistant'}]