Charlemagne reunited Western Europe. He built an empire that reached across three countries.
It affected them immeasurably because it enabled them to trade this surplus of food for things that they might need from other countries and thus get other pieces of technology or knowledge or anything similar. They could improve their state that way and that's how development of civilizations began.
I believe the best answer for this would be D
Explanation: The Mandate of Heaven did not require a ruler to be of noble birth, and had no time limitations. Instead, rulers were expected to be good and just in order to keep the Mandate. The Zhou claimed that their rule was justified by the Mandate of Heaven. In other words, the Zhou believed that the Shang kings had become immoral with their excessive drinking, luxuriant living, and cruelty, and so had lost their mandate.
Well, the British was the cause of James Monroe passing the Monroe Doctrine. They settled in territory they weren't permitted and then the Monroe Doctrine was passed in effect of European settlement aka the British. They then agreed to not settle and in return, their foreign affairs was left to be.
