This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nucleotides, Subject name: Biochemistry
ATP (Energy currency) has : 
Select and explain. 
A. Ribose, B. Deoxyribose, C. Both, D. Dideoxyribose
A: Ribose
Answer: A: Ribose 
Explanation: ATP contains Ribose sugar dATP contains deoxyribose