I think the correct answer is a
The correct answer is option A, that is, only DNA comprises nucleotides.
Nucleotides refer to the organic molecules, which function as the monomer units for producing the nucleic acid polymer DNA. Nucleotides are the building elements of nucleic acids. They are comprised of three subunit molecules, that is, a five-carbon sugar, a nitrogenous base, and at least one phosphate group.
A scientific hypothesis is the initial building block in the scientific method. Many describe it as an "educated guess," based on prior knowledge and observation. While this is true, the definition can be expanded. A hypothesis also includes an explanation of why the guess may be correct, according to National Science Teachers Association.
Hope this helps!
i don't know why you're not fair
i give you my love, but you don't care
