Fact 1: Vinegar can cause harm to the eyes.

Fact 2: It is this bacteria which turns alcohol into acetic acid, the main component of vinegar.

Given the two facts above, answer the question "what can cause harm to the eyes?" with the following options: 
- hypothyroidism
 - acetic acid
 - juice
 - water
 - Pesticides
 - heating liquids
 - light
 - rays or beams


 

  acetic acid       