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: Anaesthesia
Incubator heat is delivered by except : 
Select and explain. 
A. Conduction, B. Convection, C. Radiation, D. Evaporation
A: Conduction
Answer: A: Conduction 
Explanation: A i.e. Conduction