Instead of a Chemical Additive to Preserve Food,will Heating And/or

Instead of a chemical additive to preserve food,will heating and/or chilling the food work just as well?

A) Yes,both methods will kill bacteria and prevent spoilage.
B) No,neither method will kill bacteria nor prevent spoilage.
C) Heating will work but chilling will only retard spoilage.
D) Chilling will work but heating will destroy all the nutrients.