This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hospital waste and disaster management, Occupational health, Subject name: Social & Preventive Medicine
For the disposal of hospital refuse, the bag made with cadmium is not used because incineration of the bag causes poisonous toxic fumes evolution. The colour of the bag is - 
Select and explain. 
A. Black, B. Red, C. Blue, D. Yellow
B: Red
Answer: B: Red 
Explanation: Waste collection bags for waste type needing incineration shall not be made of chlorinated plastics. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 21ST EDITION. PAGE NO - 735