Choose the correct answer from the list below. Not all of the answers will be used.
-____________: The site on the enzyme where the reaction occurs.

A)apoenzymes
B)hydrolyases
C)active site
D)transition state
E)spontaneous
F)induced fit
G)energy
H)prosthetic group
I)lock and key
J)substrate(s)
K)oxidoreductases
L)equilibria