Which of the following was the most important question at the heart of the cold war

The most important question at the heart of the Cold War is Who would emerge as he ultimate super-power- United States or the Soviet Union.

Explanation:

At the end of World War II with the split of Germany and political upheaval in Europe, Europe no longer remained a power in the world leaving only United States and Soviet Union or the USSR. These two bloc or super powers then indulged in  a cold war to show their powers and try to emerge as the only super power.

The countries were different in their political outlook as well as ideologies and tried to prove their supremacy. USA and USSR were never involved in a direct conflict but supported proxy wars between other countries thereby showing their power and support. However with the disintegration of Soviet Union in 1991, United States emerged as the only super power.