Final answer:
A vesicovaginal fistula is found between the bladder and the vagina, which is a result of the bladder's proximity to these structures in female anatomy.
Step-by-step explanation:
A vesicovaginal fistula is found B) between the bladder and vagina. It is an abnormal fistulous tract extending between the bladder and the vagina that allows the continuous involuntary discharge of urine into the vaginal vault. In females, the bladder lies anterior to the uterus, posterior to the pubic bone, and anterior to the rectum. This placement makes the bladder and vagina approximate organs where fistulas can occur, especially due to injury or as a complication from surgeries, such as hysterectomies. The anatomy of the female urinary tract with its relatively short urethra and proximity to the vagina contributes to the potential of developing a vesicovaginal fistula.