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: Anatomy
Predominant constituent of hyaline membrane is 
Select and explain. 
A. A. Albumin, B. B. Anthracotic pigment, C. C. Fibrin rich pigment, D. D. None of the above
C: C. Fibrin rich pigment
Answer: C: C. Fibrin rich pigment 
Explanation: The membranes are largely made up of fibrinogen and fibrin admixed with cell debries derived chiefly from necrotic type -2 pneumocytes There is remarkable paucicity in neutrophilic inflammation reaction associated with necrosis