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Indicate the correct sequence through which the following insecticide came into use:

[A].	BHC, Rotenone, Malath ion and Lead arsenate	[B].	Lead arsentate, Rotenone, BHC and Malathion
[C].	BHC, Rotenone, Lead arsenate and Malathion	[D].	Rotenone, BHC, Lead arsenate and Malathion

Answer: Option B