This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
Source of maltose is 
Select and explain. 
A. Beet sugar, B. Milk, C. Germinating Cereals, D. Yeast
C: Germinating Cereals
Answer: C: Germinating Cereals 
Explanation: SugarSourceSucroseCane and beet sugar, sorghum and some fruits and vegetablesLactoseMilkMaltoseEnzymic hydrolysis of starch (amylase);germinating cereals and maltIsomaltoseEnzymic hydrolysis of starch (the branch points in amylopectin)LactuloseHeated milk (small amounts), mainlysyntheticTrehaloseYeasts and fungi; the main sugar of insect hemolymphRef: Harper&;s Biochemistry; 30th edition; Chapter 15 Carbohydrates of Physiological Significance