CDC considered the outbreak of West Nile in 1999 as a consequence of[A] the abolition

CDC considered the outbreak of West Nile in 1999 as a consequence of
[A] the abolition of the mosquito-control programs.
[B ] the surviving mosquito-borne infections.
[C] the abuse of some $ 50 million in funds.
[D] its failure to conquer mosquito-borne diseases.

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