【单选题】How important is the security dilemma for realist understandings of world politics?
A.
Very important, as it determines how, or if, a balance of power emerges.
B.
Very important, as it determines if balance of power emerges naturally or must be constructed.
C.
Important, but not crucial to realist understandings of world politics.
D.
Very important because it determines how, or if, a balance of power emerges and it determines if balance of power emerges naturally or must be constructed.