You are presented with the question "What causes food to spoil?" and the following answer choices: 
- influenza
 - Dehydration
 - Pesticides
 - disease
 - viruses
 - Bacteria
 - toxins
 - sea squirts

Now knowing that microorganisms cause food to spoil and among the threats to food and water safety are microorganisms such as bacteria, choose the best answer.


 

      Bacteria   