Fact 1: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants.

Fact 2: Ethanol is the most widely used biofuel today.

Given the two facts above, answer the question "What is produced by alcoholic fermentation of the glucose in corn or other plants?" with the following options: 
- Chemical energy
 - it helps plants in growing
 - the corniest beverage
 - Organic compounds
 - the least used fuel source
 - the least used biofuel
 - the most widely used biofuel
 - A compound that donates proton


 

       the most widely used biofuel  