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: Psychiatry
Apraxia is a disorder of: 
Select and explain. 
A. Cerebellum, B. Sensory system, C. Motor system, D. Initiating and planning movement
D: Initiating and planning movement
Answer: D: Initiating and planning movement 
Explanation: D. i.e. Initiating & planning movements