Which Species Is Oxidized in the Reaction 2 OH ^- $\rightarrow$

Which species is oxidized in the reaction 2 OH ^- (aq) +CL₂(g) $\rightarrow$ C ^- (aq) + ClO ^- (aq) +H₂O(l) ?

A) This is not a redox reaction.
B) O in OH^-
C) H in OH^-
D) Cl in ClO^-
E) Cl in Cl₂