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: Medicine
The following are characteristics of central fever except 
Select and explain. 
A. No diurnal variation, B. No sweating, C. Decreased response to external cooling, D. Resistant to antipyretics
C: Decreased response to external cooling
Answer: C: Decreased response to external cooling 
Explanation: Central fever is due to a brain lesion that has disturbed hypothalamic temperature-regulating centers and has features like:Very high temperature like 42-44 deg CRelative bradycardiaNotable absence of perspirationNo diurnal variationPersists for days to weeksResistant to antipyretics(Ref: Harrison's 18/e p1716)