In basic medium, ${\mathrm{H}}_2{\mathrm{O}}_2$ exhibits which of the following reactions?
(A) ${\mathrm{Mn}}^{2+}\to {\mathrm{Mn}}^{4+}$
(B) ${\mathrm{I}}_2\to {\mathrm{I}}^{-}$
(C) $\mathrm{PbS}\to {\mathrm{PbSO}}_4$
Choose the most appropriate answer from the options given below :

• A

  (A),(C) only
• B

  (A) only
• C

  (B) only
• Correct answer
  D

  (A), (B) only

Hence, the correct answer is option: 'D'.