What information, if included, might weaken the author's argument against ethanol? " the ethanol debate "

A) more detailed examples of the benefits of ethanol usage
B) how government subsidies to farmers to grow more corn ultimately cost the taxpayer more money
C) how increasing ethanol usage might raise prices of other staples like bread, cereal, and meat
D) that many farmers are opposed to promoting the use of ethanol because of how it affects their farm management