Passing `H_(2)S` gas into a mixture of `Mn^(+2),Ni^(2+),Cu^(2+)` and `Hg^(2+)` ions in an acidified aqueous solution precipitate

Passing `H_(2)S` gas into a mixture of `Mn^(+2),Ni^(2+),Cu^(2+)` and `Hg^(2+)` ions in an acidified aqueous solution precipitates
A. CuS and HgS
B. MnS and CuS
C. MnS and NiS
D. NiS and HgS

Passing `H_(2)S` gas into a mixture of `Mn^(+2),Ni^(2+),Cu^(2+)` and `Hg^(2+)` ions in an acidified aqueous solution precipitates

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