Answer: Option D
The sugar portion of the molecule
Explanation:
In the nucleotides found in the DNA, the nitrogenous bases (A, G, C,T) are attached to a deoxyribose sugar but in the RNA, the bases (A, G, C, U) are attached to a ribose sugar.
In ATP, the nitrogenous base adenine is attached to a ribose sugar giving rise to adenosine. Adenosine is then bonded to three phosphate groups giving rise to Adenosine triphosphate (ATP)
