Sentence Correction (SC) | Re: In the mid-1970s, since birds were overcome by pollution, and routinel

In the mid-1970’s, since birds were overcome by pollution, and routinely falling from the sky above Los Angeles freeways, this prompted officials in California to devise a plan thatreduced automobile emissions.


(A) since birds were overcome by pollution, and routinely falling from the sky above Los Angeles freeways, this prompted officials in California to devise a plan that reduced

(B) since birds that had been overcome
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