When hydrogen iodide reacts with concentrated sulfuric acid, more than one reaction takes place, including: $8\text{HI} + \text{H}_2\text{SO}_4 \rightarrow \text{H}_2\text{S} + 4\text{H}_2\text{O} + 4\text{I}_2$ Which row shows the change in oxidation number of iodine and sulfur for this reaction?
- A$-1$ for iodine; $+6$ for sulfur
- B$-1$ for iodine; $+8$ for sulfur
- C$+1$ for iodine; $-6$ for sulfur
- D$+1$ for iodine; $-8$ for sulfur