The Following Is NOT Correct About the Process of Methanogenesis

The following is NOT correct about the process of methanogenesis:

A) CO₂ and H₂O are weak electron acceptors, whereas CH₄ and H₂ are strong electron donors.
B) CH₄ synthesis from CO₂ releases energy for growth.
C) CH₄ and water can be formed from CO₂ and 4H₂ from a hydrogen donor.
D) Oxygen atoms in CO₂ are reduced one at a time.
E) Oxygen atoms in CO₂ are reduced to water at the same time.