Regarding assertion and reason, select the right option.
Assertion[A]: Trypsin helps in blood digestion of predator animals.
Reason[R]: Trypsin hydrolyses fibrinogen.
Trypsin is a protein digesting enzyme present in the intestine of animals. Though it cannot digest casein (a milk protein) in predator animals drinking the blood of their prey, trypsin hydrolyses fibrinogen of blood to fibrin, leading to blood coagulation, thus help in blood digestion. It also activates other pancreatic proteases.