What substances do X and Y represent?

Use the following equations to answer the question below
I – Boiled saliva + starch → X
II – Fresh saliva + starch → Y

A. X = Maltose and Y = Sugar
B. X = Starch and Y = Maltose
C. X = Sugar and Y = Starch
D. X = Maltose and Y = Starch

Correct Answer: Option B

B. X = Starch and Y = Maltose