Sugar moiety in DNA and RNA molecules respectively are

We need to identify the sugar moieties present in DNA and RNA respectively. DNA stands for Deoxyribonucleic acid, and its sugar component is $$\beta$$-D-2-deoxyribose. It is called “2-deoxy” because it lacks the hydroxyl group (-OH) at the 2′ carbon position of the ribose sugar (replaced by -H). RNA stands for Ribonucleic acid, and its sugar component is $$\beta$$-D-ribose. It has hydroxyl groups (-OH) at both the 2′ and 3′ positions.

Thus, DNA contains $$\beta$$-D-2-deoxyribose and RNA contains $$\beta$$-D-ribose, which corresponds to Option C. The correct answer is Option C: $$\beta$$-D-2-deoxyribose, $$\beta$$-D-ribose.