A woman is upset because of issues with infertility. While talking with the nurse practitioner, she attempts to understand how endometriosis can cause infertility. Which response, by the nurse, indicates an understanding of this condition?

"Abnormal tissue outside the pelvic cavity causes inflammation and scarring of the reproductive tract."

"Scar tissue in the pelvic region, called adhesions, are causing a stricture of the urethra."

"Retrograde menstruation caused a neoplastic condition of the ovaries."

"An untreated bacterial infection of the reproductive tract is the cause of your infertility."