Answer:
Option). Increasing enzyme, increasing substrate, increasing co-factors
Explanation:
Enzymes are bio-catalysts that increase the rate of a chemical reaction by decreasing its activation energy. As enzymes are catalytic molecules, increasing enzyme concentration would increase rate of reaction.
Substrates are those substrates that react with other molecules to form products. Thus, increasing the concentration of substrates, along with enzymes to an enzyme-catalyzed reaction would increase rate of that reaction.
Co-factors are non-protein compounds or ions, which are required for proper functioning of many enzymes. Thus, increasing the concentration of co-factors, along with enzymes to an enzyme-catalyzed reaction would increase rate of that reaction.
Thus, the correct answer is option). 'increasing enzyme, increasing substrate, increasing co-factors.'