In a galvanic cell:
- Current flows from cathode to anode.
- The anode is the negative terminal, and the cathode is the positive terminal.
- If \(E_{\text{cell}}<0\), then the reaction is non-spontaneous. Therefore, the correct statement is that the cathode is positive, and the reaction will occur spontaneously when \(E_{\text{cell}}>0\).
Thus, the correct answer is:
- a, b, and c are correct.