Please watch the video, Chapter 4 Video Case: Unintended Consequences of Ethanol Subsidies (John Stossel), and then answer the following question:

If policy-makers want gasoline to be produced from corn-based ethanol, why would they have to subsidize it?

because automobiles run better on gasoline produced from ethanol

because food prices are lower when gasoline is produced from corn-based ethanol

'because gasoline would not be produced if it was not subsidized because it is costlier to produce gasoline from corn-based ethanol than from petroleum