9.Which of the following descriptions regarding disaccharide is incorrect?
(A) Sucrose is α-D-glucopyranosyl(1-4) β-D-fructofuranoside
(B) Sucrose is a non-reducing sugar
(C) Maltose has an a(1→4) linkage
(D)Cellobiose is β-D-glucopyranosyl (1→4) β-D-glucopyranose
(E) Lactose is a reducing suger.