$\text { When } \mathrm{KMnO}_{4} \text { reacts with acidified } \mathrm{FeSO}_{4} \text {, then }$

$\text { Only } \mathrm{FeSO}_{4} \text { is oxidized }$

$\text { Only } \mathrm{KMnO}_{4} \text { is oxidized }$

$\mathrm{FeSO}_{4} \text { is oxidized and } \mathrm{KMnO}_{4} \text { is reduced }$

$\text { None of the above. }$