The Mongol Dynasty, I believe. They were the dynasty that defeated Kublai Khan.
By inspiring watchers or readers to think about how terribly wrong the Nazis were.
The correct answer is: B. Advances in robotics
Robots over the next decade are expected to become more affordable, more advanced and more prominent in the labor market as they improve productivity and cut costs. U.S. labor costs could shrink by 22 percent if machines complete only 25 percent of the tasks they're capable of performing. And while reduced labor costs are good for business owners, productivity increases could come at the expense of low-skill jobs.