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 nonreducing sugar (C) Maltose has an α(1→4) linkage (D) Cellobiose is β-D-glucopyranosyl (1→4) β-D-glucopyranose (E) Lactose is a reducing sugar.