The structure of nucleic acids, DNA and RNA, differ in that?
A) DNA contains a nucleotide with thymine, while RNA contains a nucleotide with uracil.
B) RNA contains only three different nucleotides, while DNA contains four different nucleotides.
C) RNA's backbone is made up of phosphates, while DNA's backbone is made up of nitrates.
D) DNA's nucleotide sequence is single stranded, while RNA's nucleotide sequence is double stranded.