Question ID:PT29 S1 Q3 Passage:There should be a greater use of gasohol.  Gasohol is a mixture of alcohol and gasoline, and has a higher octane rating and fewer carbon monoxide emissions than straight gasoline. Burning gasohol adds no more carbon dioxide to the atmosphere than plants remove by photosynthesis.  Stem:Each of the following, if true, strengthens the argument above EXCEPT: Correct Answer Choice:CChoice A:Cars run less well on gasoline than they do on gasohol. Choice B:Since less gasoline is needed with the use of gasohol, an energy shortage is less likely. Choice C:Cars burn on the average slightly more gasohol per kilometer than they do gasoline. Choice D:Gasohol is cheaper to produce and hence costs less at the pump than gasoline. Choice E:Burning gasoline adds more carbon dioxide to the atmosphere than plants can remove.