The answer is b, the us constitution
Answer:
NIKITA KHRUSHCHEV LEONID BREZHNEV
-relaxed previous restrictions -ended many reforms
-engaged in the Cuban Missile Crisis -supported hard-line communism
-stopped uprisings in Eastern Europe
Explanation:
I just got it right on Edge 2021
The major problem was the division. For examplo: the Cordoba caliphate <span>disintegrated into 28 taifas.
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Letter b) <span> It fell because the divisions within the empire made it vulnerable to attack.</span>
The 13 states were wary of a British-style government. They didn't want to be reproducing the British way of rule so they went to the opposite direction and became a weak government.