Answer: B) Glycolyisis
Explanation: Glycolysis occurs in virtually all living cells. Each of its steps is catalyzed by a specific enzyme and it takes place in the cytoplasm. In glycolysis and in the Krebs cycle, the NAD+ and FAD coenzymes accept hydrogen atoms from glucose and are reducted to NADH and FADH2, respectively. During glycolysis, glucose is transformed into pyruvic acid.