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: Forensic Medicine
[{'content': 'False about posterior fontanelle: BHU 09 \nSelect and explain. \nA. Helps in estimating time of bih, B. Site for concealed trauma, C. Closes at 16-18 months, D. Formed by parietal and occipital bones', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Closes at 16-18 months', 'role': 'assistant'}]