Answer:
The correct answer is D FADH2
Step-by-step explanation:
Krebs cycle is one of most important step of aerobic respiration.Pyruvate the end product of glycolysis is converted into acetyl CoA which then reacts with oxalo acetate to begins the TCA cycle .
According to the question the product of krebs cycle is FADH2 which formed from FAD during the conversion of succinate to fumarate by the catalytic activity of succinate dehydrogenase enzyme.