The PLO is Palestinian Liberation Organization which is an organization founded with the purpose of liberation of Palestine. Because of this Israel would be very interested in the place where PLO worked since the Palestinian struggle for independence is between Palestine and Israel.
The correct answer is C. Israel
Constantinople since it is the heart of the empire.
The answer is Civil War. It was battled over the subject of national supremacy versus states' rights. It established that the national government was highest or supreme, its sovereignty or dominance derived directly from the people, and therefore the states could not legally separate from the Union.
I'm pretty sure it is the Harlem Renaissance