Correct option is C
Endosulfan is a chlorinated hydrocarbon insecticide belonging to the organochlorine group. It was widely used for controlling insect pests in agriculture, particularly on cotton, tea, fruits, and vegetables.
Mode of action: Acts on the nervous system of insects by blocking GABA-regulated chloride channels
Use: Previously used against a wide range of pests
Environmental concern: Highly persistent, bioaccumulative, and toxic to wildlife and humans
Knowledge Booster (Other Option Information):
Arsenic: A heavy metal once used in some insecticides (e.g., lead arsenate).
Carbamate: A group of insecticides (e.g., carbaryl, aldicarb) that inhibit acetylcholinesterase in insects.
Pyrethroid: Synthetic analogs of natural pyrethrins (e.g., cypermethrin, deltamethrin) known for rapid knockdown effect and low mammalian toxicity.