This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Which one of the following clearly states the role of cerebellum in motor performance: \nSelect and explain. \nA. Planning and programming of movement, B. Conve abstract thought into voluntary action, C. Initiation of skilled voluntary action, D. Smoothens and coordinates ongoing movements', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Smoothens and coordinates ongoing movement Cerebellum smoothens & coordinates ongoing movement in motor performance this is the reason why lesion of cerebellum causes: - Ataxia (lack of coordination of movement) - Asynergia (lack of coordination b/w different group of muscles) - Astasia (Unsteady voluntary movement).', 'role': 'assistant'}]