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: ENT
[{'content': 'Otic barotrauma results due to - \nSelect and explain. \nA. Ascent in air, B. Descent in air, C. Linear acceleration, D. Sudden acceleration', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Otitic barotrauma or Aero otitis media results due to rapid descent during air flight, underwater divising or compression in pressure chamber.', 'role': 'assistant'}]