This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Pathology
[{'content': 'The sites of endometriosis order of frequency are- \nSelect and explain. \nA. Umbilicus, vulva, rectovaginal septum, B. pelvic peritoneum, ovaries, laparotomy scar, C. Vagina, appendix, uterine ligaments, D. Ovaries, uterine ligaments, rectovaginal septum', 'role': 'user'}, {'content': 'Answer: D \nExplanation: It frequently is multifocal and often involves pelvic structures (ovaries, pouch of Douglas, uterine ligaments, tubes, and rectovaginal septum). Less frequently, distant areas of the peritoneal cavity or periumbilical tissues are involved. Uncommonly, distant sites such as lymph nodes, lungs, and even hea, skeletal muscle, or bone are affected. ref : Robbins Basic Pathology, 9E,page-689', 'role': 'assistant'}]