Answer:
The correct answer is they both contain carbon but only nucleic acid contain phosphorous.
Explanation:
Carbohydrates are Polyhydroxy aldehydes or Polyhydroxyketones.Carbohydrates are composed of carbon,hydrogen and oxygen.The general formula of carbohydrate is CnH2nOn.
Nucleic acid on the other hand composed of nucleotides that contain nitrogen base ,ribose sugar and phosphate group.
The phosphate group is absent in carbohydrates.