[SPM Chemistry Redox Question] How to solve this question?

[Far]

[Alex]

SPM Chemistry Redox Question
5) Air laut merupakan Tenaga Boleh Baharui yang boleh menghasilkan tenaga elektrik. Seawater is a Renewable Energy that can generate electricity.
Logam manakah yang sesuai dijadikan sebagai anod jika air laut dijadikan sebagai elektrolit manakala logam aluminium dijadikan sebagai katod dalam suatu sel kimia ringkas.
Which metal is suitable as anode if seawater is used as electrolyte while aluminum metal is used as cathode in a simple voltaic cell.

A Stanum
Tin

B Platinum
Platinum

C Magnesium
Magnesium

SPM Chemistry Redox Solution
Anode must have a lower reduction potential, so Magnesium in this case is the suitable answer (being lower than aluminium).

[Far]

Ohhh I see thank you very much