Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Input: [header] How to treat parkinson's disease [title] Try amantadine (symmetrel) to manage early symptoms. [step] This is drug can control symptoms in the early stages of parkinson's disease. It may also lessen some of the side effects caused by other medications, such as levodopa. <sep> (A) Ask your doctor if this medication could help alleviate some of your parkinson's symptoms. [substeps] Purple mottling of the skin (livedo reticularis) can be a side effect, along with hallucinations. (B) Follow the dosing recommendations listed on the box's label and do not take amantadine if side effects persist for longer than two days. [substeps] If your parkinson's symptoms are mild, it is best to skip this drug for 1 to 3 days. (C) [substeps] Amantadine is available as a prescription with one dosage per week, usually at 5-10 capsules per day. Your doctor may want to write down the dosage of this medication in its dosage form for you to check on if you need to stop or progress at your normally high dosage. (D) [title] Try medicated household essentials first. [step] Medicated household essentials are the ones that are available at drug stores and pharmacies without medication labels.
Output:
A