This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Organic Mental Disorder, Subject name: Psychiatry
How many items are there in Mini mental state examination (MMSE)? 
Select and explain. 
A. 10, B. 15, C. 20, D. 30
D: 30
Answer: D: 30 
Explanation: Ans.D.30ExplanationMMSE or Folstein test is a simplified form of routine cognitive status examination. It is routinely used to track improvement and deterioration. It includes following points:Orientation to time-5Orientation to place-5Registration-3Attention and calculation-5Recall-3Language-2Repetition-1Complex commands-6Total score-30, score less than 24 indicates cognitive impairment.