Measures that can be taken to prevent bacterial vaginitis include

A)douching, use of contraceptive pills, and exercise.
B)use of absorbent tampons, frequent douching, and avoidance of tight pants.
C)avoidance of douching, use of panties with cotton crotch, and exercise.
D)avoidance of tight pants, use of panties with cotton crotch, and infrequent douching.