This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Otoconia is related to \nSelect and explain. \nA. Hearing, B. Balance, C. Smell, D. Taste', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Otoconia are bio-crystals which couple mechanic forces to the sensory hair cells in the utricle and saccule, a process essential for us to sense linear acceleration and gravity for the purpose of maintaining bodily balance. In fish, structurally similar bio-crystals called otoliths mediate balance Ref : Internet sources.', 'role': 'assistant'}]