A nurse is caring for a client who is newly diagnosed with Parkinson's disease.Which of the following medications should the nurse anticipate to administer to the client?

Choice A rationaleMetformin is an oral diabetes medication used to treat type 2 diabetes by improving the body's response to insulin.Choice B rationaleLevodopa/Carbidopa is the standard treatment for Parkinson's disease. Levodopa is converted to dopamine in the brain, which helps improve movement symptoms.Choice C rationaleInsulin is used to control blood sugar levels in diabetes mellitus, not Parkinson's disease.Choice D rationaleCefepime is an antibiotic used to treat bacterial infections, not Parkinson's disease.