Nuclear Energy Application Purpose

Medical Imaging Creates images of different parts of the body that a doctor needs to examine.
Radiation Therapy Treats cancer.
Tracers Helps determine how radioactive isotopes will behave in the body or the environment.
Food Irradiation Uses gamma rays to slow the growth of organisms, such as bacteria, molds and yeasts that cause food spoilage.

In order to control bacterial infections and/or food poisoning, the FDA (Food and Drug Administration) has approved the use of nuclear energy to control pathogens and extend shelf life of refrigerated and frozen uncooked meat. Which nuclear energy application would be most useful for this situation?
Responses
A Tracers
B Medical imaging
C Food irradiation
D Radiation therapy

C Food irradiation