A voltaic cell initially consists of a 0.0250 M Mg/Mg²⁺ half-cell and a 1.32 M Ag/Ag⁺ half-cell. Calculate the cell potential when the Ag⁺ has already dropped to 0.50 M.

• A. 4.51 V
• B. 1.25 V
• C. 2.56 V
• D. 3.16 V