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': 'Posterior cutaneous nerve of thigh supplies skin overlying: \nSelect and explain. \nA. Medial aspect of thigh, B. Posteroinferior aspect of buttock, C. Scrotum, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A i.e. Medial aspect of thigh; B i.e. Posteroinferior aspect of buttock; C i.e. Scrotum', 'role': 'assistant'}]