During the process of digesting lactose from milk, the enzyme lactase decomposes lactose into glucose and galactose. Formulate a verbal representation of this enzymatic conversion in the form of an equation. Categorize each carbohydrate participating in the reaction as either a disaccharide or a monosaccharide.

Lactose (monosaccharide) + Lactase → Glucose (disaccharide) + Galactose (disaccharide)

Glucose (monosaccharide) + Glucose (monosaccharide) + Lactase → Lactose (disaccharide)

Lactose (disaccharide) + Lactase → Glucose (monosaccharide) + Glucose (monosaccharide)

Lactose (disaccharide) + Lactase → Glucose (monosaccharide) + Galactose (monosaccharide)