I believe that the answer is E
Pretty sure it’s A- Chlorophyll reflects green light and absorbs other colors of light.
Structure A is used for (4) cell communication. The cell membrance has receptros for cell communcation.
Structure B is used to (1) extract energy from nutrients. The mitochondria is the power house of the cell.
Structure C is used for (1) protein synthesis. The golgi apparatus is where protein is created.
Carbon atoms can form 4 covalent bonds.