The cerebellum is a part of the brain that plays a vital role in coordinating and controlling voluntary movements, balance, and posture. It does not have a specific role in hearing, memory, or vision.

Option 1: Hearing - The cerebellum is not responsible for processing auditory information or maintaining hearing abilities. Therefore, an injury to the cerebellum would not directly affect a person`s hearing.

Option 2: Muscular coordination - This is the correct option. The cerebellum is primarily involved in the coordination and control of voluntary movements. It receives information from various parts of the brain and the sensory systems, and then sends signals to the muscles to initiate and control movements. Injuries to the cerebellum can lead to difficulties in coordinating movements, resulting in problems with balance, posture, and muscle control.

Option 3: Memory - The cerebellum is not directly involved in memory formation or retrieval. Memory processes primarily occur in other areas of the brain, such as the hippocampus and prefrontal cortex. Therefore, an injury to the cerebellum would not affect a person`s memory.

Option 4: Vision - The cerebellum does not have a specific role in processing visual information. Visual perception occurs in the visual cortex, which