Which of the Following Is an Oxidation-Reduction Reaction

Multiple Choice

Which of the following is an oxidation-reduction reaction?

A) HBr(aq) + NaOH(aq) → NaBr(aq) + H₂O(l)
B) NaI(aq) + AgNO₃(aq) → AgI(s) + NaNO₃(aq)
C) Pb(C₂H₃O₂) ₂(aq) + 2 LiBr(aq) → PbBr₂(s) + 2 LiC₂H₃O₂(aq)
D) Ba(s) + 2 HCl(aq) → BaCl₂(aq) + H₂(g)
E) All of the above are oxidation-reduction reactions.