This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
A 3 day neonate has refusal to feeding and gets with vomiting on forceful feeding. There is also abdominal distension. Urine Benedict's test is positive. Which of the following Reducing substance is likley to be found in urine? 
Select and explain. 
A. Galactose, B. Glucose, C. Fructose, D. Sucrose
C: Fructose
Answer: C: Fructose 
Explanation: This 3 days old infant is likely to have Hereditary fructose intolerance. DEFICIENCY Of FRUCTOSE-1,6-BISPHOSPHATE ALDOLASE (ALDOLASE B, HEREDITARYFRUCTOSEINTOLERANCE).