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': 'Thinnest bone is a pa of which bone - \nSelect and explain. \nA. Frontal, B. Ethmoid, C. Sphenoid, D. Temporal', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans is 'd'i.e., TemporalSquamous pa of temporal bone is the thinnest pa of the skull (excluding orbital shelf)", 'role': 'assistant'}]