Gluconeogenesis is the conversion of pyruvate to glucose. this metabolic pathway needs several cofactors to complete the conversion. complete the unbalanced equation to generate one equivalent of glucose.
1 pyruvate + 2 nadh + 2 atp + 2 gtp → 1 glucose + 2 nad+ + 2 adp + 2 gdp + 2 pi

predict the positions of the glucose molecule that would become labeled from pyruvate (the label in the carboxyl group of pyruvate).

(a) carbon 3
(b) carbon 4
(c) carbon 5
(d) carbon 1
(e) carbon 6
(f) carbon 2