This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of External Ear, Subject name: ENT
[{'content': 'To visualize tympanic membrane pinna has to be pulled \nSelect and explain. \nA. Upwards, backwards and medially, B. Upwards, backwards and laterally, C. Downwards, backwards and laterally, D. Downwards, backwards and medially', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Outer pa of EAC (Cailage) is directed upwards, backwards and medially. Inner pa of EAC (Bone) is directed downwards, forwards and medially. Therefore, to see the tympanic membrane, the pinna has to be pulled backwards, upwards and laterally (BUL) so as to bring the two pas in alignment.', 'role': 'assistant'}]