This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
[{'content': 'The following drug is available in the form of transdermal patch \nSelect and explain. \nA. Dexmedetomidine, B. Scopolamine, C. Atropine, D. Homatropine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Scopolamine is used as transdermal patch for motion sickness .sticked in post-auricular region 30min before travel Ref: KDT 6th ed pg 114', 'role': 'assistant'}]