<span>C. the sudden expansion of the universe from a hot, dense state</span>
In laymen's terms it is easy for it to created bonds (covalent) with other elements; it is the backbone for most chemicals in the human body. It's also part of glucose sugar, one of the most common natural sugars that occurs especially in fruits.
Answer:
there are 4 major classes of biological macromolecules
Water; Inorganic compound
Oxygen; Element found in water
Carbon; Element that is part of most organic compounds
Carbohydrate; Energy-rich organic compound
Hope that helped!
