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: Unknown
[{'content': 'The “World Anesthesia day” is celebrated every year on: \nSelect and explain. \nA. 16th October, B. 7thApril, C. 15th August, D. 1st December', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]