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': 'Connexin 26 mutation is associated with: \nSelect and explain. \nA. Deafness, B. Anosmia, C. Seizures, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Among the genes associated with human deafness, GJB2 encoding for connexin 26 is significant for being associated with nearly 20% childhood deafness.', 'role': 'assistant'}]