GKFix MCQ Question

What is the percentage of oxygen if m g of compound produces m1 g of CO2?

• A. (44/32) × (m1/m) × 100%
• B. (32/44) × (m1/m) × 100%
• C. (32/88) × (m1/m) × 100%
• D. (88/32) × (m1/m) × 100%