Which one of the following statements is not true regarding (+)...

Options

1. A(+) lactose is a $\beta$-glycoside formed by the union of a molecule of $D(+)$ glucose and a molecule of $\mathrm{D}(+)$ galactose
2. B(+) lactose is a reducing sugar and does not exhibit mutarotation
3. C(+) lactose, $\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}$ contains 8-O $\mathrm{H}$ groups
4. DOn hydrolysis (+) lactose gives equal amount of $\mathrm{D}(+)$ glucose and $\mathrm{D}(+)$ galactose