Which of the Following Is True for an Enzyme Catalyzed

Which of the following is true for an enzyme catalyzed reaction?

A) The rate of the reaction will increase indefinitely with an increase in the substrate concentration.
B) The rate of the reaction will increase with an increase in the substrate concentration until it reaches a maximum rate.
C) The rate of the reaction will decrease as the substrate concentration increases.
D) The rate of the reaction is unaffected by substrate concentration.
E) The rate of the reaction decreases as the amount of enzyme available increases.