A voltaic cell with an overall cell reaction Zn(s) + Co²⁺(aq) → Zn²⁺(aq) + Co(s) is built similar to the diagram shown below. The electrodes of the half-cells are made up of a strip of Zn placed in a Zn(NO₃)₂ solution and a strip of Co placed in a CoCl₂ solution. In what direction do the cation and anion flow through the solution?

• A. The cations migrate toward the anode, Co(s). The anions migrate toward the cathode, Zn(s)
• B. The cations migrate toward the cathode, Zn(s). The anions migrate toward the anode, Co(s)
• C. The cations migrate toward the anode, Zn(s). The anions migrate toward the cathode, Co(s)
• D. The cations migrate toward the cathode, Co(s). The anions migrate toward the anode, Zn(s)

Answer: (D)