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
Surfactants are synthesized by- 
Select and explain. 
A. Type 1 cells, B. Type-2 cells, C. Epithelial cells, D. Endothelial cells
B: Type-2 cells
Answer: B: Type-2 cells 
Explanation: Ans. is 'b' i.e., Type-2 cells * Surfactant is produced by type II pneumocytes.