Organizations, with their own legally independent and permanent bodies and powers, differ from other international platforms, conferences and say summits. They are also distinguished from international regimes, which are in fact general mechanisms foreseen and consumed by a group of States for accomplishing various individual goals. International and regional organizations possess a legal personality, as well as being an autonomous political entity, and may well act on their own behalf despite the fact that their decisions and policies are shaped thanks to the votes of the member States. Possessing an international legal personality, first and foremost, means having rights, powers and obligations within international legal realm. Organizations are not only subject to all relevant sorts of international responsibilities, they also have the capacity and capability to create legal rules. However their personality, especially compared to States which are sovereign actors and subjects, is a limited one. As can be understood from the information given, all the answer choices include the characteristics of international organizations, so the correct answer is E.