Following insecticide belongs to organophosphate group

Answer: Option C

Malathion insecticide belongs to organophosphate group.
Malathion is an organophosphate insecticide. It possesses relatively low toxicity compared with other organophosphates.
Malathion is a pesticide that is widely used in agriculture, residential landscaping, public recreation areas, and in public health pest control programs such as mosquito eradication.
Malathion is an acetylcholinesterase inhibitor, a diverse family of chemicals. Upon uptake into the target organism, it binds irreversibly to the serine residue in the active catalytic site of the cholinesterase enzyme.