Which of the Following Is a Characteristic of the Coupling

Which of the following is a characteristic of the coupling between glycolysis and the citric acid cycle?

A) Citrate inhibits glucokinase to regulate glycolysis.
B) Glycolysis feeds acetyl-CoA,via pyruvate,to the citric acid cycle.
C) Oxaloacetate builds up when the citric acid cycle reaches saturation.
D) Glycolysis directs electrons into the electron transport chain for the purpose of ATP production.