Economist: Prosperity is a driving force behind increases in the release ... ...

Economist: Prosperity is a driving force behind increases in the release of carbon dioxide, the main cause of global warming. As incomes rise, more people spend money on energy-consuming devices such as cars, thereby producing more carbon dioxide. Also, in countries that experienced deep economic recessions, there were steep drops in carbon dioxide emissions. Which one of the following most accurately states the overall conclusion drawn in the economist’s argument?
(A) Carbon dioxide is the main cause of global warming.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Oct 2012 LSAT (PT67): Logical Reasoning B