This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drugs (C.N.S.), Subject name: Medicine
[{'content': 'Drug emerging as the agent of choice for initial treatment of tourette syndrome - \nSelect and explain. \nA. Haleperidol, B. Valproate, C. B complex, D. Clonidine', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., ClonidineTounette syndromeo Mild and non disbling-Education and counselling without pharmacological tic suppression therapyo With bothersome Tics-Tetrabenzineo Only focal or vocal motor Tics-Botulinum toxin injection into the affected muscleso With ADHD-Guanafacine or clonidine", 'role': 'assistant'}]