Which of the Following Statement About Enzymes Is True

Which of the following statement about enzymes is true?

A) Enzymes increase the rate of a chemical reaction by eliminating the activation energy.
B) Most enzymes are nucleic acids.
C) Enzymes can distinguish between enantiomers.
D) Enzymes are rarely specific for the reactions they catalyse.
E) Enzymes are rigidly fixed into a specific three-dimensional structure.