What Is the Primary Distinction Between Advocacy Groups and Other

What is the primary distinction between advocacy groups and other interest groups?

A) Advocacy groups are more focused on specific policy goals.
B) Advocacy groups are much more dependent on grassroots mobilization.
C) Advocacy groups pursue broad policy goals but rely much less on local chapters and formal membership, if they have them at all.
D) Advocacy groups give citizens far more opportunities to participate actively, beyond simply writing a check to an interest group that they support.
E) Advocacy groups depend on broad participation to set agendas and formulate strategies.