Given below are two statements.

Statement I: Thrombokinase is formed by a series of linked enzymic reactions (cascade process).

Statement II: Blood clotting involves a number of factors always present in active state in the plasma.

In the light of above statements, choose the correct answer from the options given below.

Clotting is a complex cascade of enzymatic reactions in which each clotting factor activates many molecules of the next one in a fixed sequence. 

Blood clotting factors are normally present in a inactive form. An injury or a trauma stimulates the blood platelets to released certain factors which activate the mechanism of coagulation.