A) took place after the end of World War II.
Details/context:
Jewish immigration into the Palestine region had been happening since the end of the 19th century and escalated in the early 20th century. Â The pressure for Jews to leave Europe escalated when the Nazis came to power in Germany. Â Then the Nazis went from persecuting Jews to a plan to annihilate them. Â The orders for the "Final Solution" (as they termed it) came in 1941 -- to kill all the Jews. Â The Holocaust was a systematic mass slaughter of European Jews and others in Nazi concentration camps. Â Adolph Hitler also commanded that all Jews in Russian territories be slaughtered when German troops began their invasion of Russia in 1941. Â Â The world became more sympathetic to the plight of the Jews after the horrors of the Holocaust became known.
After World War II ended, the United Nations (UN) adopted a plan for the partition of Palestine that would create a portion of that territory as the state of Israel. Â Arabs in the region and surrounding Arab nations were not in favor of this. Â On May 14, 1948, the Jewish leaders in the land proclaimed their independence as a nation, and a war with Arab peoples and nations in the region followed. Â Israel won that war and established itself as a nation. Â The new state of Israel was granted membership in the UN in 1949.