In This Unbalanced Chemical Reaction Which Element Is Oxidized And Which Is The

in this unbalanced chemical reaction, which element is oxidized and which is the reduced?  Cl2 + NaBr —> NaCl + Br2

chlorine is reduced, sodium is oxidized

chlorine is oxidized, bromine is reduced

bromine is oxidized, chlorine is reduced

sodium is reduced, chlorine is oxidized