Oxalic acid, `H_(2)C_(2)O_(4)`, reacts with paramagnet ion according to the balanced equation `5H_(2)C_(2)O_(4)(aq)+2MnO_(4)^(-)(aq)+6H^(+)(aq)hArr2Mn^(2+)(aq)+10CO_(2)(g)+8H_(2)O(l)`. The volume in mL of 0.0162 M `KMnO_(4)` solution required to react with 25.0 mL of 0.022 M `H_(2)C_(2)O_(4)` solution is
A. 13.6
B. 18.5
C. 33.8
D. 84.4