The only non-ester pyrethroid introduced in the year 1987 is

Answer: Option C

The only non-ester pyrethroid introduced in the year 1987 is Etofenprox.
Etofenprox is a non-ester pyrethroid insecticide with comparable toxicity and a similar mode of action to other pyrethroids.
Etofenprox is an insecticide that disturbs insect nervous systems following direct contact or ingestion, and which is active against a broad spectrum of pests.