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': 'Most common type of finger impression is: \nSelect and explain. \nA. Arch, B. Whorl, C. Loop, D. Composite', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Loop', 'role': 'assistant'}]