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
[{'content': 'Surfactant is made up of \nSelect and explain. \nA. Fibrin, B. Mucoprotein, C. Phospholipids, D. Fibrinogen', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Phospholipids(Ref: Ganong, 25th ed/p.630)Composition of surfactantSurfactant lipidsSurfactant proteins* Account for approximately 90% of surfactant (phospholipids)Major surfactant lipids are,* Dipalmotoyl phosphatidylcholine (DPPC) - Lecithin- most abundant component of surfactant* Phospthatidylglycerol* Account for approximately 10% of surfactantMajor surfactant proteins are,* Surfactant protein-A (SP-A)* Surfactant protein-B (SP-B)* Surfactant protein-C (SP-C)* Surfactant protein-D (SP-D)', 'role': 'assistant'}]