GMAT Critical Reasoning (CR) | Re: In June of 2009, the state legislature passed a series of laws designe

I was between C &D but rejected D because of following statement: "the amount of carbon emitted by coal-powered factories was actually a fraction of a percent higher in 2012 than it had been in 2009."

I was not sure why the emission % will increase when legislation was delayed till 2000.

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