Identify the species that are oxidized and reduced in the reaction below:
CH₄O + O₂ → CO₂ + H₂O
- CH₄O is oxidized and O₂ is reduced.
- CH₄O is oxidized and CO₂ is reduced.
- O₂ is oxidized and CH₄O is reduced.
- CO₂ is oxidized and H₂O is reduced.