Another Molecule of Citric Acid from the Same Glass of Lemon

Multiple Choice

Another molecule of citric acid from the same glass of lemon juice is converted to oxaloacetate, which is subsequently processed into glucose.How many molecules of ATP and/or GTP do the reactions from citrate to oxaloacetate produce, either directly or indirectly through the respiratory chain?

A) 3.
B) 6.
C) 7.
D) 9.
E) 12.