Answer:
Hayes, a Republican, became president after a disputed election. ... In return, he agreed to end federal support of radical Republican governments in the South. He promised to name southerners to his cabinet and other important jobs. And he said he would provide more federal aid for schools and railroads in the South.
Explanation:
A person's point of view will make their answer a non biases answer. simply because they view something a certain way.
Robert Oppenheimer, was brought in for the Manhattan Project. Top Secret, they were worried about him at first, but realized he was a genius. What is the Manhattan Project? The race to build the world's first atomic bomb during World War 2. Robert Oppenheimer was called in to be the main man to basically make the atomic bomb real.
Social classes: King
Priests
Scribes
Merchants & Artisans
Commoners
Slaves
Economic classes: calendar and irrigations (via canals and ditches), craftsmen (copper and bronze workers)
I believe the answer is A. Correct me if i'm wrong :)