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. Perseveration
A: Neologism
Answer: A: Neologism 
Explanation: A i.e. Neologism