How many carbon atoms are added to oxaloacetate to produce citrate? Remember, we are undergoing hydrolysis of our Acetyl CoA, and it is this portion, this acetyl group that gets added to oxaloacetate in order to form citrate. This acetyl CoA, which I've just put within this black box has how many carbons? It has 1, 2 carbons. So, 2 carbon atoms are added to oxaloacetate in order to produce citrate.
That means that option b would be our correct answer.
