Which of the Following Best Describes Bacterial Vaginosis

Which of the following best describes bacterial vaginosis?

A) Bacterial overgrowth in the vagina that can be caused by a variety of organisms
B) An infection of the upper genital tract in women, often caused by gonorrhea or chlamydia
C) An infection of the vagina that usually causes painful, recurring outbreaks
D) An STI that causes a single painless sore, called a chancre, in the vaginal area