<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 53-year-old woman presents with a feeling of pelvic pressure which worsens with prolonged standing, pain on sexual intercourse, and lower back pain. She reports no urinary or fecal incontinence. She is G3P3 with no history of any gynecological disease and is premenopausal. All pregnancies were without complication and resolved with full-term vaginal deliveries. The patient has sex with her husband who is her single sexual partner and uses oral contraceptives. Her vital signs are within normal limits and physical examination is unremarkable. A gynecological examination reveals bulging of the posterior vaginal wall in the lower portion of the vagina which increases in the upright position and Valsalva maneuver. The cervix is in its normal position. The uterus is not enlarged, ovaries are nonpalpable. Damage to which of the following structures might contribute to the patients condition?? A: Rectovaginal fascia, B: Cardinal ligaments, C: Round ligaments, D: Pubocervical fascia, E: Uterosacral ligaments,  <response>: This is a patient with symptoms of pelvic pressure, dyspareunia, and back pain. She has no urinary or fecal incontinence. On pelvic exam, she has a posterior vaginal wall bulge that increases with standing and Valsalva, indicating pelvic organ prolapse. The question asks which damaged supportive structure contributes to her condition. The choices list various pelvic ligaments that help support the pelvic organs. Posterior vaginal wall prolapse indicates weakness in the rectovaginal fascia, which separates the posterior vaginal wall from the rectum. Damage to this fascia can allow the posterior vaginal wall to bulge into the vagina.A: Rectovaginal fascia 