A standard galvanic cell is constructed based on the reaction 3Cu^2+ + 2Al -> 3Cu + 2Al^3+, with KCl in the salt bridge. By name or number, identify all of the following three changes that would increase the cell potential: 1) Addition of sodium hydroxide solution to the aluminum half-cell 2) Replacing KCl with K2SO4 in the salt bridge 3) Addition of distilled water to double the volume in both half-cells