A client who has been experiencing infertility for the past 24 months received a new diagnosis of endometriosis. The client asks the nurse why this diagnosis has prevented them from becoming pregnant. Which of the following explanations is appropriate for the nurse to make?

"You are producing insufficient quantities of Follicle-stimulating hormone (FSH), which is preventing an egg from maturing each month"

"Endometrial tissue is blocking your tubes, preventing your eggs from being fertilized by your partner's sperm"

"Inside your uterus is a benign tumor that makes it impossible for the fertilized egg to implant"

"You have a chronic infection of the vaginal tract that makes the secretions hostile to your partner's sperm"