<prompt> Predominant constituent of hyaline membrane isA. AlbuminB. Anthracotic pigmentC. Fibrin rich pigmentD. None of the above  <response>: 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 