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': 'Esophagus enters abdomen through \nSelect and explain. \nA. Central tendon of diaphragm, B. Along aortic opening, C. Muscular part of diaphragm, D. Right crus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Oesophageal opening\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Level- T10\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 At muscular portion derived from right crus\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Structures transmitted\n\n\xa0 Oesophagus\n\xa0\xa0Oesophageal branch of left gastric artery\n\xa0 Vagus nerve', 'role': 'assistant'}]