Which statement correctly contrasts energy yield and substrate use in fed versus fasting states?

• A. Fed state favors glycolysis and lipid synthesis; fasting state increases gluconeogenesis, glycogenolysis, and ketogenesis.
• B. Fed state favors gluconeogenesis and ketogenesis; fasting favors glycolysis.
• C. In both states, ATP yields are identical.
• D. The liver does not adjust metabolic flux with feeding status.

Answer: (B)