One of the steps in glycolysis produces NADH. In mature red blood cells, which of the following is the fate of most of this NADH?
A. A transporter in the inner mitochondrial membrane transports the entire NADH molecule into the mitochondria
B. Lactate dehydrogenase uses NADH to reduce pyruvate to lactate.
C. An enzyme uses NADH to reduce oxidized glutathione (GSSG) to reduce glutathione (GSH)
D. The glyceraldehyde phosphate shuttle reduces NADH to NAD, and therapy produces FADH2 inside mitochondria