This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Physiology
Major surfactant is 
Select and explain. 
A. Dipalmytoil lecithine, B. Dipalmytoil cephalin, C. Dipalmytoil serine, D. Dipalmytoil inositol
A: Dipalmytoil lecithine
Answer: A: Dipalmytoil lecithine 
Explanation: Dipalmytol lecithin in is the major surfactant Ref: guyton and hall textbook of medical physiology 12 edition page number:311,312,313