This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal tract, Subject name: Pharmacology
[{'content': 'Which of the following drugs is not used for motion sickness: \nSelect and explain. \nA. Metoclopranide, B. Cyclizine, C. Cinnarizine, D. Scopolamine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: repeat', 'role': 'assistant'}]