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: Social & Preventive Medicine
[{'content': 'Disinfection by autoclaving is NOT recommended for- \nSelect and explain. \nA. Sputum, B. Linen, C. Sharp instruments, D. All', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Sharp instruments", 'role': 'assistant'}]