Answer:
The correct answer is - option D. excellent insulators.
Step-by-step explanation:
To keep internal body temperature and maintain homeostasis, there is a layer of fats just underneath the skin that is of lipids. Lipids likewise give insulation from the cold and freezing temperature to plants and animals. the lipid tail of the atom is hydrophobic as the water is polar.
They are excellent insulators as they have thick fat layers that trap air inside. For instance, they help keep oceanic mammals and bids dry due to their water-repulsing nature.
Thus, the correct answer is - option D. excellent insulators.