In the Geopolitical Sphere, a Balance of Power Is

In the geopolitical sphere, a balance of power is

A) a condition of roughly equal strength between opposing sides, as if they were two equally matched camps.
B) always bipolar but reinforced by satellite states.
C) a condition of unequal strength between opposing sides, as if they were two powerful allies, supported by a range of satellite states.
D) exemplified by a League of Nations or, in the post-World War II era, the United Nations.
E) the type of power shared by the members of the North Atlantic Treaty Organization.