How did world war 2 start and how did it end.

Britain and France declared war on Germany on 3 September 1939, but gave no real assistance to Poland. Two weeks later, Stalin invaded eastern Poland, and on 27 September Warsaw surrendered. Organised Polish resistance ceased after another week's fighting

Explanation:

- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

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option a

explanation:

to cleberate the end of their war