Akinesia (hypoactivity) and mutism is a feature of: (A) Twillight state, (B) Stupor, (C) Cataplexy, (D) Torpor
Answer is B. Akinesia + Mutism is a feature of stupor, which is seen in catatonic schizophrenia or catalepsy.
Option c : Cataplexy is sudden loss of muscle tone seen in Norcolepsy, which is not a correct answer.