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
In Alzheimer's disease (AD) which of the following are seen: 
Select and explain. 
A. Aphasia, B. Apraxia, C. Agnosia, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Ans. All the aboveAll 4 A's are seen early in Alzheimer's disease.4 A's are:Amnesia-Memory disturbancesAphasia-Disturbances in language functionApraxia-Difficulty in performing learned motor movementsAgnosia-Difficulty to interpret a sensory stimulus