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
Most specific of psychosis - 
Select and explain. 
A. Neologism, B. Incoherence, C. Pressure of speech, D. Persveration
A: Neologism
Answer: A: Neologism 
Explanation: Besides Hallucinations and delusions, the symptoms of psychosis include circumstantiality, tangentiality, derailment, looseness of association, the flight of ideas, word salad, Change association, neologism, and echolalia.