Correct Answer: B

Rationale: The cerebellum, located at the back of the brain beneath the occipital lobes, is responsible for controlling balance, coordination, and fine motor movements. It receives sensory input from the inner ear, muscles, and eyes, integrating this information to maintain posture and equilibrium. Damage to the cerebellum can cause ataxia, a condition characterized by poor coordination and unstable movement. Through its intricate neural connections, the cerebellum ensures smooth, precise muscle control necessary for everyday actions such as walking, writing, and speaking. It works unconsciously, fine-tuning motor activity in real time.

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