You are presented with the question "What has a negative impact on the body?" and the following answer choices: 
- pathogens
 - medicines
 - antibiotics
 - smallpox
 - amoebae
 - viruses
 - smoking
 - antibodies

Now knowing that disease-causing microbes have a negative impact on the body and pathogens are microbes that cause disease, choose the best answer.


 

 pathogens        