Why Do We Have Storage Macromolecules,such as Fats,in Our Bodies

Why do we have storage macromolecules,such as fats,in our bodies?

A) We can break down these macromolecules to provide energy for the endergonic reactions in our bodies.
B) Human cells can directly capture the energy of sunlight through photosynthesis and store it as macromolecules such as fats.
C) Macromolecules,such as fats,are a convenient way to store kinetic energy.
D) Breaking down macromolecules,such as fats,is an endergonic process.