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: ENT
[{'content': "Most common presentation of nasopharyngeal carcinoma is? \nSelect and explain. \nA. Neck mass, B. Trotter's triad, C. Ophtalmoplegia, D. Glue ear", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is'a'i.e., Neck mass(Ref: Dhingra Sn/e p. 265)Neck mass is the most common presentation (60-90%) due to cervical lymphadenopathy.", 'role': 'assistant'}]