This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Catatonia is characterized by all except NOT RELATED-PSYCHIATRY 
Select and explain. 
A. Echolalia, B. Grandiosity, C. Mutism, D. Abnormal posturing
B: Grandiosity
Answer: B: Grandiosity 
Explanation: Catatonia is characterized by marked disturbance of motor behavior presents in 3 clinical forms.a) Excited catatoniab) Stuporous catatoniac) Catatonia alternating between excitement & stupor.