Salamin bioinsecticides have been extracted from

A. Chrysanthemum cinerariifolium

B. Derris elliptica

C.Azadirachta indica

D. Eichhornia

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Hint: Biopesticides, a contraction of 'biological pesticides', encompass various sorts of pest administration intervention: through predatory, parasitic, or chemical relationships. The period has been related traditionally to biological pest control – and by using implication, the manipulation of residing organisms.

b>Complete- Step-by Step-Answer:
Over the years, considerable use of commercially reachable synthetic pesticides in opposition to phytophagous insects has led to their bioaccumulation in the surroundings inflicting elevated resistance and reduction in soil biodiversity. Further, 90% of the applied pesticides enter several environmental sources as an ea result of run-off, exposing the farmers as nicely as customers of the agricultural produce to severe health issues. Therefore, growing attention has been given to the improvement of alternate environmentally friendly pesticides/insecticides that would aid an efficient pest administration machine and additionally forestall persistent exposures leading to diseases. One such approach is, the use of neem plant's (Binomial name: Azadirachta indica) active ingredients which showcase agro-medicinal residences conferring insecticidal as well as immunomodulatory and anticancer properties Bioinsecticides are insecticidal microorganisms or natural toxins. Salamin is an organic pesticide extracted from neem leaves and seeds. Azadirachta indica is known as a neem tree that is native to the Indian subcontinent. It is a natural insecticide. Neem seed powder is used as sprays on crops. It acts as a repellent and egg-laying deterrent for insects.
Thus, the correct answer is option C.

Hence, the correct option is ( C ) Azadirachta indica.

Note: Azadirachta indica, in many instances, acknowledged as neem, Mindtree, or Indian lilac, is a tree in the mahogany family Meliaceae. It is one of two species in the genus Azadirachta and is native to the Indian subcontinent and most of the international locations in Africa. It is typically grown in tropical and subtropical regions.