Aluminium phosphide?

Correct option is C

Aluminium phosphide is a compound commonly used as a rodenticide. It releases phosphine gas, which is highly toxic to rodents. This gas interferes with cellular respiration, leading to the death of the target pests. While it is primarily used as a rodenticide to control rodent populations, it is not used as a fungicide, weedicide, herbicide, or insecticide. Therefore, option (c) Rodenticide is the correct classification for aluminium phosphide.