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
Which method is used for safe disposal of Mercury? 
Select and explain. 
A. Bury under eah, B. Collect carefully & reuse, C. Combustion, D. Treatment with Chemical
B: Collect carefully & reuse
Answer: B: Collect carefully & reuse 
Explanation: Collect carefully and reuse is the correct method for safe disposal of Mercury.