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
True about screw feed technology 
Select and explain. 
A. Waste is reduced by 80% in volume and by 20-35% in weight, B. Waste is reduced by 85% in volume and by 10-20% in weight, C. Wet thermal disinfection process, D. Used to process pathological waste
A: Waste is reduced by 80% in volume and by 20-35% in weight
Answer: A: Waste is reduced by 80% in volume and by 20-35% in weight 
Explanation: Screw-feed technology is the basis of a non-burn, dry thermal disinfection process in which waste is shredded and heated in a rotating auger.The waste is reduced by 80 percent in volume and by 25-35 percent in weight.This process is suitable for treating infectious waste and sharps. Should not be used to process pathological, cytotoxic or radioactive waste.Park 23e pg: 792