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': 'Esophageal opening in diaphragm is at the level of \nSelect and explain. \nA. T8, B. T10, C. T12, D. T6', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Oesophagus pierces diaphragm at level of tenth thoracic veebrae. BD CHAURASIA&;S HUMAN ANATOMY VOLUME 1. 6TH EDITION Page no- 282', 'role': 'assistant'}]