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': 'Right tracheobronchial angle is \nSelect and explain. \nA. 10- 15 Degree, B. 25-30 Degree, C. 40-50 Degree, D. 80-90 Degree', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Right tracheobronchial angle is 25-30 degree . Ref - Researvhgate.net', 'role': 'assistant'}]