Answer: Not become exposed to the virus
Explanation:
B. Viruses
We catch the common cold from a living thing called a virus. There is about 200 identified viruses you can catch but the most common is the rhinovirus, it causes 10% - 40% in spring, summer, and fall.
Nutrition to me means "what you need to live healthy". There are many factors in nutrition that you need everyday in order to be healthy. If we didn't have "Nutrition" we wouldn't have "Nutritional values", which calculate out how much we are supposed to consume.
Hope this helps!