14. When the cells require both NADPH and ribose 5-phosphate, the fate of glucose 6-phosphate (G6P) is:
(A) G6P↔ ribulose 5-phosphate (R5P).
(B) G6P↔ R5P ↔fructose 6-phosphate (F6P)+ glyceraldehyde 3-phosphate (G3P)↔ G6P.
(C) G6P↔ F6P + G3P.
(D) G6P↔ R5P ↔ F6P+ G3P↔ pyruvate.