True or false: All the extra carbohydrates we consume are stored as fat. If true, explain why these excess carbohydrates are not stored as glycogen.

• A. False, all excess carbohydrates are stored as glycogen.
• B. True, because glycogen storage is inefficient.
• C. False, not all excess carbohydrates are stored as fat.
• D. True, because energy stored in the form of glycogen is not readily available.

Answer: (C)