The given diagram illustrates a gaseous chemical reaction, where gray spheres denote carbon atoms, and red spheres denote oxygen atoms. Provide the molecular formula of the reactants and products.

• A. Reactant: C₂O
  Products: CO and C₂
• B. Reactant: CO₂
  Products: CO and C₂
• C. Reactant: C₂O
  Products: CO and O₂
• D. Reactant: CO₂
  Products: CO and O₂

Answer: (D)