This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
Heat loss at an ambient temperature of 21 degree takes place through 
Select and explain. 
A. Respiration, B. Radiation, C. Sweating, D. Urine and faeces
B: Radiation
Answer: B: Radiation 
Explanation: Radiation is a process of heat transfer to or from the surroundings mediam . It doesn't require any conducter Ref:Guyton and Hall textbook of medical physiology 12th edition,page number:863,864