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: Dental
“Inertization” deals with: 
Select and explain. 
A. Mixing biomedical waste with cement and other   substance before disposal, B. Incineration of biomedical waste with cement and   other substance before disposal, C. Dumping of Biomedical waste in sanitary landfills, D. Screw feed technology to disinfect sharps
A: Mixing biomedical waste with cement and other   substance before disposal
Answer: A: Mixing biomedical waste with cement and other   substance before disposal 
Explanation: The process of ‘Inertization’ involves mixing biomedical with cement and other substance before disposal, so as to minimize risk of toxic substances contained in waste to contaminate ground / surface water. Inertization is especially suitable for pharmaceuticals and for incineration ashes with high metal content
A typical composition of mixture is:

i) 65% pharmaceuticals waste
ii) 15% lime
iii) 15% cement
iv) 5% water