You are presented with the question "What can run on alcoholic fermentation of the glucose in corn or other plants?" and the following answer choices: 
- Energy
 - bicycles
 - drink
 - skateboards
 - cars
 - cows
 - rollerskates
 - sugar

Now knowing that ethanol is produced by alcoholic fermentation of the glucose in corn or other plants and cars can run on pure ethanol or a mixture of petrol and ethanol, choose the best answer.


 

     cars    