What is the main structural difference between ribose and deoxyribose sugars in nucleotides?

• A. Deoxyribose contains a nitrogenous base that ribose does not.
• B. Ribose lacks a phosphate group that deoxyribose has.
• C. Ribose has an additional hydroxyl group compared to deoxyribose.
• D. Deoxyribose has an additional hydroxyl group compared to ribose.

Answer: (C)