Chlorine dioxide, ClO$_2$, undergoes reaction with sodium hydroxide as shown below. $2\text{ClO}_2 + 2\text{OH}^- \rightarrow \text{ClO}_2^- + \text{ClO}_3^- + \text{H}_2\text{O}$ Which statement gives the correct description of this redox reaction?
- AChlorine atoms are oxidised and oxygen atoms are reduced.
- BChlorine atoms are reduced and oxygen atoms are oxidised.
- CSome chlorine atoms are oxidised and some chlorine atoms are reduced.
- DSome oxygen atoms are oxidised and some oxygen atoms are reduced.