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
Lactose on hydrolysis yeilds ? 
Select and explain. 
A. 2 molecules of fructose, B. 2 molecules of glucose, C. One molecule of glocuse and one molecule of fructose, D. One molecule of glocuse and one molecule of galactose
D: One molecule of glocuse and one molecule of galactose
Answer: D: One molecule of glocuse and one molecule of galactose 
Explanation: Ans.is 'd' i.e., One molecule of glocuse and one molecule of galactose