I'd say (B) but I'm not completely sure.
Answer:
about six years
World War II (WWII) was a long and bloody war that lasted about six years. Officially beginning on September 1, 1939, when Germany invaded Poland, World War II lasted until both the Germans and the Japanese had surrendered to the Allies in 1945.
Explanation:
Tremendously. Stalin was the USSR everything it was up to his death he had built. But not without getting a lot of hatred on the way. Following his death Soviet leaders had years or "de-stalinization" basically undoing everything he had done. Which lead to the collapse of the Soviet Union in 1990. After the dissolution of the Soviet union other areas that were claimed by the Soviet Union became independent.
Answer:
Checks and balances are one because it refers to TWO branches keeping each other in check!
Explanation: