What Is the Difference Between the Disaccharides Lactose and Maltose $\rightarrow$

What is the difference between the disaccharides lactose and maltose?

A) Lactose contains two glucose units, while maltose contains two galactose units.
B) The two monosaccharides in lactose are joined by a 1 $\rightarrow$ 4- $\beta$ -glycoside bond, while the two monosaccharides in maltose are joined by a 1 $\rightarrow$ 4- $\alpha$ -glycoside bond.
C) Lactose contains both an acetal and a hemiacetal, while maltose contains two acetals.
D) Lactose can be hydrolyzed in the body, but maltose cannot.