This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Lateral boundry of ischiorectal fossa is formed by \nSelect and explain. \nA. Gluteus maximus, B. Levator ani, C. Gluteus minimus, D. Obturator internus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Boudaries of ischiorectal fossa\nAnterior - Perineal membrane\nPosterior - Gluteus maximus\nLateral - Obturator internus\nMedial - External anal sphincter and levator ani', 'role': 'assistant'}]