What does it mean for an organism to be anaerobic?

a. It is poisoned by water.

b. It lives in salty environments.

c. It is poisoned by oxygen.

d. It produces large amounts of oxygen.

An anaerobic organism or anaerobe is any organism that does not require oxygen for growth. It may react negatively or even die if free oxygen is present. (In contrast, an aerobic organism (aerobe) is an organism that requires an oxygenated environment.)