Which of the Following Is the Major Difference Between Glycogen $\alpha$

Which of the following is the major difference between glycogen and amylopectin?

A) Glycogen contains $\alpha$ -glycosidic bonds; amylopectin contains $\beta$ -glycosidic bonds.
B) Glycogen is branched; amylopectin is linear.
C) Glycogen contains a reducing end; amylopectin does not.
D) Glycogen contains about twice the number of branch points as amylopectin.
E) Glycogen is found in plants; amylopectin is found in animals.