How Do α-Amylase and β-Amylase Differ in Their Functions

How do α-amylase and β-amylase differ in their functions?

A) They do not differ; they are two different enzymes that perform the same function.
B) α-amylase hydrolyzes α-1,6-glycosidic bonds, but β-amylase hydrolyzes β-1,4-glycosidic bonds.
C) α-amylase hydrolyzes α-1,6-glycosidic bonds in an orderly way, but β-amylase hydrolyzes α-1,4-glycosidic bonds at random.
D) α-amylase hydrolyzes α-1,4-glycosidic bonds at random, but β-amylase hydrolyzes α-1,4-glycosidic bonds in an orderly way.