"<span>a. a federal law ending segregation in the U.S." would be the best option, since this was the event that contained Martin Luther King's famous "I Have a Dream" Speech. </span>
B i think i hope this helped u out
<span><span>1. </span><span>Nullification doctrine is said that the
states residing within the Union is undocumented. Supposed Aliens and sedition
acts was passed to punish those who opposed the federal laws and regulations. However,
it was Thomas Jefferson who thought that this act may affect the Bill of Human
rights, so he decided to make an equally unconstitutional doctrine that states
if a government would implement a law, a state could refuse to follow it. John Calhoun, soon adapted the Nullification
doctrine</span></span>
Sparta attacked Athens by land.
You must note that the war was started by Sparta, and that Sparta had a better army, while Athens had a better navy. Since Sparta initiated the war, they were usually able to choose whether the battles would mostly be on land or in the sea. Sparta acted on them having a better land force, and invaded through land, which led to Sparta's victory.
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