This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Fructose intolerance is due to deficiency of ? 
Select and explain. 
A. Aldolase B, B. Fructokinase, C. Triokinase, D. Aldolase A
A: Aldolase B
Answer: A: Aldolase B 
Explanation: None