Pickling is a way of preserving food. One type of pickling involves the growth of bacteria that turn the environment acidic, and most harmful organisms cannot survive in those conditions. The presence of acids is why many pickled products have a sour taste.

Which of the following statements is true regarding pickling?
A.
The bacteria used in pickling change the flavor of the food.
B.
The bacteria used in pickling change their environment.
C.
The bacteria used in pickling makes the food safer to eat.
D.
all of these

D. all of these