This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Which or the following is the principal mode of heat exchange in an infant incubator? 
Select and explain. 
A. Radiation, B. Evaporation, C. Convection, D. Conduction
C: Convection
Answer: C: Convection 
Explanation: Convection warmed incubators are being routinely used for thermal regulation of the premature neonate's ambient air. Ref: Essential Pediatrics By O P Ghai, 6th Edition, Page 154; Maternal, Neonatal and Women's Health Nursing, By Lynna Y. Littleton, Joan Engebretson, 2002, Volume 1, Page 1145