Option C is correct because according to the textbook, White colour code is specifically assigned for sharps including metals; used, discarded and contaminated metal sharps, needles, syringes with fixed needles, needles from needle tip cutter, blades, scalpel or any other contaminated sharp object that may cause puncture and cuts. This matches perfectly with the option given. The other options are incorrect: Yellow is for anatomical waste, soiled waste, discarded or expired medicines, chemical waste, bedding, microbiology and biotechnology waste (not recyclable plastic waste). Red is for contaminated plastic waste like IV tubes, bottles, catheters, syringes without needles, urine bags, vaccutainers and gloves (not metallic body). Blue is for metallic body implants, broken or discarded and contaminated vials, ampoules (not general health care waste).