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
Mutism and akinesis in a person is aware of his surroundings and somewhat ale is best described as a feature of: 
Select and explain. 
A. Oneroid state, B. Twilight state, C. Stupor, D. Delirium
C: Stupor
Answer: C: Stupor 
Explanation: Ans. C. StuporAkinetic mutism is a feature of Stupor.* In this condition, the patient is unable to initiate action and speech but appears awake and ale.* There is a severe reduction of relational function - speech and action.* Akinetic mutism is also seen in Schizophrenia with affective psychosis and dissociative states.