This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New born infants, Subject name: Pediatrics
All of the following can occur in a neonate for heat production except 
Select and explain. 
A. Shivering, B. Breakdown of brown fat with adrenaline secretion, C. Universal flexion like a fetus, D. Cutaneous vasoconstriction
A: Shivering
Answer: A: Shivering 
Explanation: On exposure to cold and wet environment, the neonate tries to generate heat by increasing physical activity(crying, increased body movements) and by mounting a sympathetic surge that causes peripheral vasoconstriction and non-shivering thermogenesis in the brown fat. Reference : page 143 Ghai Essential Pediatrics 8th edition