Fact 1: Disease-causing microbes have a negative impact on the body. Fact 2: Pathogens are microbes that cause disease. Given the two facts above, what can have a negative impact on the body?
Choices: A. Pesticides. B. Growing a beard. C. Pathogens. D. Probiotics. E. Restful sleep. F. viruses. G. smallpox. H. bacteria.
C.