Nucleic acids<span> are long chains made of individual, repeated units called monomers. The particular name for the units of </span>nucleic acids<span> are called nucleotides and each contains three things: a phosphate group, a sugar (deoxyribose in DNA and ribose in RNA) and a nitrogenous base. </span>
I think it was <span>Rosalind Franklin who discovered what DNA was made up of.
</span>James Watson and Francis Crick discovered the double helix shape of DNA and also created a 3d model of it, so it's not B nor C.
To my understanding (you should double check) the answer is D
I'm pretty sure the answer is water :)
