Which Statement Below Is Consistent with the Facts That One

Which statement below is consistent with the facts that one function of nucleotides is energy transfer and that carbohydrates can be used to store energy?

A) If we humans could not store and transfer energy, we would have to match our energy input (eating) exactly to our energy requirements, even while sleeping.
B) There are not enough kinds of amino acids for proteins to be used as energy storage molecules.
C) Energy transfer and storage are processes that are unique to humans and, therefore, they are used to determine the classification of people.
D) Energy transfer is how we take the energy we gather from photosynthesis and transfer it into water molecules for later use when we need energy.