In eukaryotes, most of the high-energy electrons released from glucose by cellular respiration a. are bound to fad to be sent through the process of oxidative phosphorylationb. are used for synthesizing lactic acidc. are used to form atp by the citric acid cycled. reduce nad+ to nadh, which then delivers them to the electron transport chain

The correct answer is "reduce NAD+ to NADH, which then delivers them to the electron transport chain".

Explanation:

During cellular respiration, high-energy electrons are released from glucose and they move gradually through the electron transport chain towards oxygen. Most of these high-energy electrons are used to reduce NAD+ to NADH, which then delivers them to the electron transport chain. The reduction of NAD+ is the first step of the electron transport chain, which is transported from NADH and FADH2 to molecular oxygen.

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.

i believe the answer is c