AP BIO...PLEASE HELP

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Which of the following statements about NAD+ is false?

A). NAD+ is reduced to NADH during both glycolysis and Krebs cycle
B). NAD+ had more chemical energy then NADH
C). NAD+is reduced by the action of dehydrogenases
D). NAD+ can receive electrons for use in oxidative phosphorylation
E). In the absence of NAD+, glycolysis cannot function

I thought it was B, but other ppl were telling my it was D, so know i am really confused

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