Fact 1: Microorganisms can cause infections.

Fact 2: For example, an infection of a limb is usually treated with antibiotics.

Given the two facts above, answer the question "Antibiotics can be used to treat what?" with the following options: 
- myopia
 - most organisms
 - balding
 - basic building blocks of life
 - age spots
 - harmful substances
 - Illness from microrganisms
 - single-celled organisms


 

       Illness from microrganisms  