a) multipolar
According to International Relations Theory, a world where there is no hegemonic power and there are many regional poweres is considered multipolar: Thus, a regional power extends an area of influence and in global politics there is a clash of many powers that creates a multipolar structure. In this structures as we can see in the present every region in the world is determined by key actors that emerged from previous strutures and anarchy is less present in a international system.
For example in the present we see India become a powerful actor together with China, contesting US presence in the East Asia. As well the remergence of Russia with Vladimir Putin in European politics challenges a hegemonic power. And other key actors in South America like Brasil now contest in terms of economic and energetic powers. Therefore International relations theory analists would agree that today we live in a multipolar world.