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: Forensic Medicine
All are first rank symptoms of schizophrenia, except: TN 06; UPSC 08; Karnataka 11; NIMHANS 11; NEET 13; PGI 14 
Select and explain. 
A. Audible thoughts, B. Thought broadcasting, C. Voice arguing or discussing or both, D. Perplexity
D: Perplexity
Answer: D: Perplexity 
Explanation: Ans. Perplexity