This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: ENT
[{'content': 'Anterior bowing of the posterior maxillary wall is described as - \nSelect and explain. \nA. Holman miller sign, B. Hennebert sign, C. Holsky sign, D. Honeybell sign', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Holman miller sign o Anterior bowdng of the posterior wall of maxillary sinus (antral sign or Holman-Miller sign) is pathgnomic of Juvenile Nasopharyngeal Angiofibroma.", 'role': 'assistant'}]