GKFix MCQ Question

What is the correct formation reaction for CO₂(g)?

• A. C(diamond, s) + O₂(g) → CO₂(g)
• B. CO(g) + ½O₂(g) → CO₂(g)
• C. C(graphite, s) + O₂(g) → CO₂(g)
• D. CaCO₃(s) → CaO(s) + CO₂(g)