Carbohydrates lipids proteins and nucleic acids are important molecules in living organisms. These large structures have similarities, however they have certain differences that may be used to distinguish them. Which of the following statement best describes the macromolecules ?

A) Oxygen and phosphate are found in carbon hydrates

B) Nitrogen atoms are found in proteins and lipids

C) Nitrogen and an R-group are present in proteins and nucleic acids

D) Hydrogen , carbon and oxygen atoms are present