Evaluate the efficiency of gluconeogenesis in terms of energy expenditure and ATP yield.

• A. Gluconeogenesis is energy-intensive but necessary for glucose synthesis when stores are depleted.
• B. Gluconeogenesis is unnecessary if glucose is available.
• C. Gluconeogenesis is highly efficient and requires minimal energy.
• D. Gluconeogenesis produces more ATP than glycolysis.

Answer: (A)