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
Which of the following is not among Bleuler's 4A's of Schizophrenia? 
Select and explain. 
A. Ambivalence, B. Apraxia, C. Affect disturbance, D. Autism
B: Apraxia
Answer: B: Apraxia 
Explanation: Loosening of Association is the 4th A which is missing in the above choices. This is however a very old classification with only historical significance. Autism is now considered as a seperate condition and the term it is not used to indicate negative symptoms of Schizophrenia. Apraxia is usually seen in stroke involving paretal lobe.