Read the chemical equation shown.

cl2 + 2nabr → 2nacl + br2

which statement is true about this chemical equation?

cl (chlorine) is oxidized and br (bromine) is reduced.
cl (chlorine) is reduced and br (bromine) is oxidized.
na (sodium) is reduced and cl (chlorine) is oxidized.
na (sodium) is oxidized and br (bromine) is reduced.