Which of the Following Reactions Is Commonly Used to Replenish $\rarr$

Multiple Choice

Which of the following reactions is commonly used to replenish intermediates of the citric acid cycle?

A) citrate $\rarr$ oxaloacetate + acetyl CoA
B) oxaloacetate $\rarr$ aspartate
C) glutamate $\rarr$ $\alpha$ -ketoglutarate
D) malate $\rarr$ pyruvate
E) all of the above