Which of the following chemical reactions depicts the oxidising behaviour of `H_(2)SO_(4)`?
A. `2HI+H_(2)SO_(4) to I_(2)+SO_(2)+2H_(2)O`
B. `Ca(OH)_(2)+H_(2)SO_(4) to NaHSO_(4)+HCl`
C. `NaCl+H_(2)SO_(4) to NaHSO_(4)+HCl`
D. `2PCl_(5)+H_(2)SO_(4) to 2POCl_(3)+2HCl+SO_(2)Cl_(2)`
