The diagram depicts a simple cell. Which statement about the process taking place while the cell is working is correct?
- A$\text{Cu}^{2+}$ ions are formed in solution.
- BElectrons travel through the solution.
- CThe reaction $\text{Zn} \rightarrow \text{Zn}^{2+} + 2e^-$ occurs.
- DThe zinc electrode increases in mass.