Answer the following question given this paragraph: 

In alcoholic fermentation , pyruvic acid changes to alcohol and carbon dioxide. This is shown in Figure below . NAD + also forms from NADH, allowing glycolysis to continue making ATP. This type of fermentation is carried out by yeasts and some bacteria. It is used to make bread, wine, and biofuels.


Q: In alcoholic fermentation , which acid changes to alcohol and carbon dioxide?

 Choices:

- rain

- chloride

- lipoic

- pyruvic

A:
pyruvic
