Choose the Correct Answer from the List Below

Choose the correct answer from the list below. Not all of the answers will be used.
-A tightly bound cofactor might be called a(n) ____________.

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