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: Radiology
[{'content': "The extraoral radiograph that best demonstrates the 18. subcondylar portion of mandible is the: \nSelect and explain. \nA. AP mandible, B. Water's view, C. Towne's view, D. Submental vertex", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]