When chlorine is added to aqueous potassium bromide, bromine is displaced. The ionic equation for the reaction is shown: $\text{Cl}_2 + 2\text{Br}^- \rightarrow 2\text{Cl}^- + \text{Br}_2$. Which statement about this reaction is correct?
- ABromide ions act as an oxidising agent.
- BBromide ions are oxidised when electrons are lost.
- CChlorine acts as a reducing agent.
- DChlorine is reduced when electrons are lost.