Which reaction does not take place during the extraction of aluminium?
- A$\text{Al}^{3+} + 3e^- \rightarrow \text{Al}$
- B$2\text{Al}_2\text{O}_3 + 3\text{C} \rightarrow 4\text{Al} + 3\text{CO}_2$
- C$2\text{O}^{2-} \rightarrow \text{O}_2 + 4e^-$
- D$\text{C} + \text{O}_2 \rightarrow \text{CO}_2$