Which option describes the purpose of the as-set argument of the aggregate-address command?

Refer to the exhibit. Which option describes the purpose of the as-set argument of the aggregate-address command?

A. it provides an AS path in the aggregate advertisement that contains only the local AS number.
B. It provides a predefined AS path in the aggregate advertisement that is used to indicate an aggregate prefix.
C. It provides an AS path in the aggregate advertisement that includes the AS numbers of the component members.
D. It provides a list of AS numbers top which the aggregate is advertised.