Fact 1: Keeping food cold is used for keeping food fresh.

Fact 2: On inspection the temperature of the fridge was found to be adequate for food storage.

Given the two facts above, answer the question "Keeping things what is a way to adequately store them?" with the following options: 
- cold in a fridge
 - hydrogen and oxygen
 - hot in a pan
 - layers of fat
 - in the trash
 - out in the yard
 - Electrical energy
 - staying warm


 

 cold in a fridge        