( A ) (+) Lactose is a $\beta$-glycoside formed by the union of a molecule of D(+) glucose and a molecule of D(+) galactose
( B ) (+) Lactose is a reducing sugar and does not exhibit mutarotation
( C ) (+) Lactose, $C_{12}H_{22}O_{11}$ contains 8-OH groups
( D ) On hydrolysis (+) Lactose gives equal amount of D(+) glucose and D(+) galactose
