The Presence of Enzymes to Catalyze Bioreactions in Our Bodies

The presence of enzymes to catalyze bioreactions in our bodies allows

A) bioreactions to occur under extreme conditions of temperature and pH.
B) the rate of a desired chemical reaction to slow down.
C) bioreactions to take place under mild conditions.
D) the activation energy of a reaction to be raised.
E) us to eat non-nutritious substances without consequence.