C. hazardous waste
Explanation:
The given picture depicts the sign for hazardous waste over the bin.
Hazardous waste is the chemical waste that can be either in the form of gases, solid or liquid is capable of causing damage to the organisms. The waste can be corrosive, reactive, ignitable, toxic and effect of the waste may remain for long and drastic. A hazardous waste should be available in a laboratory so as to prevent accidental fire and explosion, burns and injuries.