Which of the following is not a clinical feature of a Catatonic Stupor?

Correct option is C

Incoherence is not a typical feature of catatonic stupor. In catatonic stupor, the patient may exhibit symptoms like mutism, echolalia, posturing, and negativism, but they are usually silent or mimicry-based in behavior—not disorganized or incoherent speech.
Explanation of options: (a) Mutism – ✔ Common feature where the patient is mute despite being awake and alert. (b) Echolalia – ✔ Present in catatonia, where the patient repeats others' speech automatically. (c) Incoherence – ❌ Not a typical catatonic symptom; it is more related to disorganized speech seen in schizophrenia. (d) Posturing – ✔ Frequently observed, where the patient maintains rigid or inappropriate body positions for extended periods.