Which statements correctly describe the great wall?

select all correct answers.

it is the longest man-made structure in the world.

it was built along the southern border of qin's empire.

it was built to protect qin's empire from foreign invasion.

the entire structure was built during the qin dynasty.

it can be seen from the moon.

What was the main point of helen hunt jackson's book, century of dishonor? a. it showed how unfairly american settlers were treated by the us government. b. it proved that american government was not responsive to the will of the people. c. it made the point that free land was no longer available to new settlers out west. d. it outlined the poor treatment of the native americans by the government.