For Extraction of metals and reduction, which electrolysis focus answer best supports this Unit 4.4 objective: Explain why metals less reactive than carbon can be extracted from oxides by reduction with carbon?

The correct option is Because carbon is more reactive than the metal, it can remove oxygen from the metal oxide, forming carbon dioxide and the metal. - correct electrolysis focus for reduction.

The correct option is Because carbon is more reactive than the metal, it can remove oxygen from the metal oxide, forming carbon dioxide and the metal. - correct electrolysis focus for reduction. Because carbon is more reactive than the metal, it can remove oxygen from the metal oxide, forming carbon dioxide and the metal. - correct electrolysis focus for reduction is correct because it directly supports the approved learning objective to explain why metals less reactive than carbon can be extracted from oxides by reduction with carbon. This electrolysis focus variant asks students to separate reduction from similar Unit 4.4 chemical-change ideas. The reasoning belongs to Extraction of metals and reduction within Reactivity of metals, so it should not be confused with nearby ideas about acids, alkalis, bases, oxidation, reduction, displacement, reactivity, electrolysis, electrodes, ions, pH, or salt preparation unless those are named in the objective. Use the focus term reduction to keep the answer aligned with AQA GCSE Chemistry 8462 Unit 4.4 Chemical changes. Keep acid, alkali and base distinct; keep oxidation and reduction distinct; do not mix reduction with displacement; keep electrolysis separate from electroplating; distinguish anode from cathode, positive ions from negative ions, oxidation state from ionic charge, and strong acid from concentrated acid. The other options are weaker because they either use the wrong reaction type, wrong ion, wrong electrode, wrong acid-base distinction, vague wording, or the wrong chemical-change context.