Step 7 of the Citric Acid Cycle Is Shown Below

Step 7 of the citric acid cycle is shown below.Which of the following correctly describes what is occurring in this step?

A) Fumarate undergoes hydrolysis with the aid of the enzyme fumarase.
B) Fumarate undergoes reduction with the aid of the cofactor fumarase.
C) Fumarase supplies the hydrogens and electrons necessary for the hydrogenation of fumarate.
D) Fumarate undergoes hydration with the aid of the enzyme fumarase.
E) Fumarase is a coenzyme that catalyzes the hydrogenation of fumarate.