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: Surgery
[{'content': 'Cricothyroidotomy is contraindicated in \nSelect and explain. \nA. Age below 5 years, B. Age between 15-20 yrs, C. Age between 20-30 yrs, D. Age between 30-40 yrs', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]