\(\begin{array}{*{20}{c}} {A\mathop \to \limits^{4\;KOH.{O_2}} 2B + 2{H_2}O}\\ {\left( {Green} \right)}\\ {3{\rm{B}}\mathop \to \limits^{{\rm{\;}}4{\rm{\;HCl\;}}} 2{\rm{C}} + {\rm{Mn}}{{\rm{O}}_2} + 2{{\rm{H}}_2}{\rm{O}}}\\ {\left( {Purple} \right)}\\ {2{\rm{C}}\mathop \to \limits^{{{\rm{H}}_2}{\rm{O}},{\rm{\;KI\;}}} 2{\rm{A}} + 2{\rm{KOH}} + {\rm{D}}} \end{array}\)In the above sequence of reactions, A and D respectively, are

• A. KI and KMnO4
• B. MnO2 and KIO3
• C. KI and K2 MnO4
• D. KIO3 and MnO2