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
First rank symptoms of schizophrenia are all except - 
Select and explain. 
A. Ambivalence, B. Running commentary, C. Primary delusion, D. Somatic passivity
A: Ambivalence
Answer: A: Ambivalence 
Explanation: None