For the redox equation below, in what way do the oxidation states of vanadium and sulfur alter? $\text{VO}_2^+ + \text{SO}_2 \rightarrow \text{V}^{3+} + \text{SO}_4^{2-}$
- Avanadium: from $+1$ to $+3$; sulfur: from $0$ to $-2$
- Bvanadium: from $+1$ to $+3$; sulfur: from $+4$ to $+6$
- Cvanadium: from $+5$ to $+3$; sulfur: from $0$ to $-2$
- Dvanadium: from $+5$ to $+3$; sulfur: from $+4$ to $+6$