During the Pentose Phosphate Pathway (Glucose-6-P → Ribose-5-P), Is There

Multiple Choice

During the pentose phosphate pathway (glucose-6-P → ribose-5-P) , is there a net oxidation of the substrate carbon atoms?

A) Yes.
B) No.
C) It depends on whether the process is under aerobic or anaerobic conditions.
D) It depends on the species doing the process.
E) It depends on whether the glucose goes through the oxidative part of the pathway or not.