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
The disposal of night soil and refuse is by? 
Select and explain. 
A. Chemical sterilization, B. Burning, C. Composting, D. Any of the above
C: Composting
Answer: C: Composting 
Explanation: Ans. is 'c' i.e., Composting