The pentose phosphate pathway generates which one of the following?
选项：

A:NADH, which may be used for fatty acid synthesis.
B: Ribose-5-phosphate, which may be used for the biosynthesis of ATP.
C:Pyruvate and fructose 1,6-bisphosphate by the direct action of transaldolase and transketolase.
D:Xylulose-5-phosphate by one of the oxidative reactions.
E: Glucose from ribose-5-phosphate and CO2.