Why Is Enforcement by Institutions Actually "Self-Enforcement

Multiple Choice

Why is enforcement by institutions actually "self-enforcement"?

A) Institutions can force their own members to comply with their agreements without outside help.
B) There is no central international authority capable of forcing actors to cooperate.
C) To force members to cooperate,actors pay dues to their institutions to create their own enforcement agency.
D) Each institution is defined as a sovereign entity or "self."
E) Conflicts are resolved by a rotating panel of members who punish those who violate the rules.