The oxidation number and the electronic configuration of sulphur in \[{{H}_{2}}S{{O}_{4}}\]is [KCET 2002]

• A.                 + 4;\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}\]  
• B.                 + 2; \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{2}}\]
• C.                 + 3; \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{1}}\]
• D.                 + 6; \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}\]