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': 'Arcuate eminence of the petrous temporal bone is caused by : \nSelect and explain. \nA. Superior semicircular canal, B. Posterior semicircular canal, C. Lateral semicircular canal, D. Cochlea', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Superior Semicircular Canal;', 'role': 'assistant'}]