Animals and most microorganisms are classified as chemoorganoheterotrophs. The prefixes "chemo," "organo," and "hetero" refer to how the organism meets its needs, respectively, for:

(A) electrons, carbon, and energy
(B) carbon, energy, and electrons
(C) electrons, energy, and carbon
(D) energy, electrons, and carbon
(E) carbon, electrons, and energy

Option A.

Electrons,carbon and energy.

Explanation:

Chemorganoheterotrophs are organisms that uses organic substrates to produce carbon needed for their growth and development. They derive their energy from oxidation and reduction of organic substances. The use the reduced carbon produced by autrotophs as as source of electrons, carbon and energy. Example is fungi that uses carbon as electron donor and source for carbon and energy.