Consider an Electrochemical Cell Based on the Reaction

Consider an electrochemical cell based on the reaction:

Which of the following actions would change the measured cell potential?

A) lowering the pH in the cathode compartment
B) increasing the pressure of hydrogen gas in the cathode compartment
C) increasing the pH in the cathode compartment
D) increasing the [Sn²⁺] in the anode compartment
E) Any of the above will change the measure cell potential.