Fact 1: Killing microorganisms in food can be used to extend the shelf life of that food.

Fact 2: Bacteria are microorganisms that exist everywhere.

Given the two facts above, answer the question "Bacteria can be killed to extend the shelf life of what?" with the following options: 
- milk
 - rocks
 - coffee
 - edible
 - food
 - phytoplankton
 - influenza
 - tuna


 

     food    