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B
Helianthus annus
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C
P. indica
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D
Chrysanthemum cinerarifolium
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Solution
The correct option is DChrysanthemum cinerarifolium Pyrethrum is the powdered, dried flower head of Chrysanthemum cinerarifolium. The term pyrethrins refer to the six related insecticidal compounds that occur naturally in the crude material. These compounds have potential insecticidal activity. These compounds are a part of insect repellants such as coils, sprays, etc.