The Equation for Cellular Respiration Is: C₆H₁₂O₆ + 6O₂ $\rightarrow$ 6CO₂ + 6H₂O

The equation for cellular respiration is: C₆H₁₂O₆ + 6O₂ $\rightarrow$ 6CO₂ + 6H₂O. At what specific point in the cellular respiration process has glucose been broken down completely from a six carbon molecule to 6 molecules of CO₂?

A) During the second oxidation in the Krebs cycle
B) During pyruvate oxidation
C) During the condensation reaction in the Krebs cycle
D) During the priming reactions in glycolysis
E) During the oxidation and ATP formation reactions in glycolysis