This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb : Miscellaneous, Subject name: Anatomy
[{'content': 'Which number is pointing to the left iliac region? \nSelect and explain. \nA. 12, B. 10, C. 11, D. 13', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]