How Do Bacteriocins Benefit Bacteria in Their Natural Habitat

How do bacteriocins benefit bacteria in their natural habitat?

A) They protect the bacteria from the effects of antibiotics in the environment.
B) They provide a source of nutrients during adverse environmental conditions.
C) They allow bacteria to compete against other bacteria that may attempt to use the same or similar resources.
D) They are protective structures that allow bacteria to survive adverse environmental conditions.
E) They induce resistance in the bacteria, helping them survive when medications are introduced into their habitat.