In a nucleotide, we find which other biomolecule(s) making up a piece of the nucleotide itself?

If these are the choices: 
A. No other biomolecules are present 
B. Protein 
C. Lipid 
D. Carbohydrate

My answer is D. Carbohydrate.

A nucleotide has three parts. These parts are 1) nucleobase aka nitrogenous base, 2) a five-carbon sugar or pentose sugar (either ribose or 2-deoxyribose), and 3) one or more phosphate groups.

D. Carbohydrate is under the 2) pentose sugar part of the nucleotide.

~potters6/te801/biology/biounits/respiration.htm

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