How Do Fats Compare to Other Biomolecules as a Source

How do fats compare to other biomolecules as a source of energy?

A) Fats have more energy than carbohydrates or protein.
B) Fats have less energy than carbohydrates or protein.
C) Fats have less energy than carbohydrates but more than protein.
D) Fats have more energy than carbohydrates but less protein.
E) All biomolecules have the same amount of stored energy.