<prompt> Which of the following coagulation factors causes cross linking and stabilization of clot.Factor XIIIThrombinFactor VIIIFactor IX  <response>: A i.e. Factor XIIIFactor XIII 13 also known as fibrin stabilizing factor, when gets activated by thrombin cause formation of covalent cross linkages and provide three dimensional strength to fibrin meshwork stbilizationQFactor XIII a conves a loose mesh of interlacing fibrin strands to a tightly dense aggregate by formation of multiple covalent bonds between fibrin monomers and cross linkages between fibrin fibers. This also requires calcium. 