Which of the following disorders is characterized by tremors, muscle rigidity, inability to initiate movement, and possibly dementia?

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Parkinson's disease is a neurological disorder that is characterized by tremors, muscle rigidity, difficulty initiating movement, and possibly dementia. Alzheimer's disease and Multi-infarct dementia may also involve dementia, but they do not typically involve tremors or muscle rigidity. Korsakoff's syndrome is associated with alcohol abuse and involves memory loss and other cognitive deficits, but not tremors or muscle rigidity.

Which of the Following Disorders Is Characterized by Tremors, Muscle