Complete the given reactions.
(A) `2MnO_4^(-)+H_2O+I^(-)to2ul((i))+2OH^(-)+IO_3^(-)`
(B) `MnO_4^(-)+5Fe^(2+)+8H^(+)toul((ii))+5ul((iii))+4H_2O`
A. `{:("(i)","(ii)","(iii)"),(MnO_2,Mn^(2+),Fe^(3+)):}`
B. `{:("(i)","(ii)","(iii)"),(Mn^(2+),MnO_2,Fe^(3+)):}`
C. `{:("(i)","(ii)","(iii)"),(MnO_2,MnO_4^(2-),Fe(OH)_3):}`
D. `{:("(i)","(ii)","(iii)"),(MnO_4^(2-),Mn^(2+),Fe_2O_3):}`