In the Reaction H₂O + CO₂ + Carbonic Anhydrase $\rightarrow$ H⁺+ HCO₃^- + Carbonic Anhydrase,carbonic Anhydrase Is A(n)
A) Reactant

In the reaction H₂O + CO₂ + carbonic anhydrase $\rightarrow$ H⁺+ HCO₃^- + carbonic anhydrase,carbonic anhydrase is a(n)

A) reactant.
B) product.
C) enzyme.
D) active site.