Microbes Known as Transient Microbiota Are

Microbes known as transient microbiota are

A) organisms that remain in the body for a short time.
B) unsuccessful microbial invaders because of the presence of preexisting microbes.
C) microorganisms that remain with the person throughout life.
D) microorganisms that may cause a disease under certain circumstances.
E) sources of microbial contamination.